diff --git a/src/core/game3/battle/init.lua b/src/core/game3/battle/init.lua
index 3cea3777..2e0d8aca 100644
--- a/src/core/game3/battle/init.lua
+++ b/src/core/game3/battle/init.lua
@@ -2100,7 +2100,10 @@ local function start_post_catch_flow(catchRes)
             gender = gender,
             personality = personality,
             seed = ename,
-            title = "YOUR POKEMON'S NICKNAME?",
+            -- pret naming_screen.c:1712 DrawMonTextEntryBox: gSpeciesNames[mon]
+            -- + gText_PkmnsNickname. The hand-written "YOUR POKEMON'S NICKNAME?"
+            -- was 141px wide and spilled over the frame's right edge.
+            title = Naming.monTitle(Pokemon.name(sp)),
             onDone = function(nick)
               if nick and nick ~= "" and nick ~= ename then
                 if mon then mon.nickname = nick end
diff --git a/src/core/game3/scripting/natives.lua b/src/core/game3/scripting/natives.lua
index 05d15918..0d676d36 100644
--- a/src/core/game3/scripting/natives.lua
+++ b/src/core/game3/scripting/natives.lua
@@ -261,7 +261,7 @@ Natives.ALLOW = {
       end)
       local sname = (Pokemon.name and Pokemon.name(species)) or "POKéMON"
       adapters.openNaming({
-        title = sname .. "'s nickname?",
+        title = require("src.ui.game3.naming").monTitle(sname),
         template = "NICKNAME",
         maxLen = 10, -- pret POKEMON_NAME_LENGTH
         species = species,
diff --git a/src/ui/game3/naming.lua b/src/ui/game3/naming.lua
index ba223177..208536dc 100644
--- a/src/ui/game3/naming.lua
+++ b/src/ui/game3/naming.lua
@@ -25,6 +25,15 @@ Naming.TEMPLATE = {
   NICKNAME = "NICKNAME",
 }
 
+-- pret gText_PkmnsNickname ("'s nickname?"), prepended with gSpeciesNames[mon]
+-- by DrawMonTextEntryBox — pokefirered/src/naming_screen.c:1712. Used by both
+-- mon naming templates (CAUGHT_MON and NICKNAME).
+function Naming.monTitle(speciesName)
+  local s = tostring(speciesName or "")
+  if s == "" then s = "POKéMON" end
+  return s .. "'s nickname?"
+end
+
 -- pret sKeyboardChars + sPageColumnXPos (cursor). Letters drawn via ROW_TEXT CLEARs.
 local PAGES = {
   {
@@ -90,9 +99,19 @@ local SIDE = { "PAGE", "BACK", "OK" }
 -- Values below are on-screen top-left blit positions (px).
 local L = {
   titleX = 73, titleY = 33,
+  -- WIN_TEXT_ENTRY_BOX = {tilemapLeft 9, tilemapTop 4, width 16} → screen
+  -- x 72..200; the title prints at (1,1) inside it, so it has 127px before the
+  -- GBA's per-window clip (CopyGlyphToWindow) would truncate it.
+  titleMaxW = 127,
   -- Player/rival icon CreateSprite(56,37); 16×32 → TL (48,21)
   iconCX = 56, iconCY = 37,
   iconW = 16, iconH = 32,
+  -- Mon icon CreateMonIcon(species, SpriteCallbackDummy, 56, 40) is a 32×32
+  -- sprite (Versions.MON_ICON_W/H) drawn unscaled, centred on the frame baked
+  -- into bg.png — pokefirered/src/naming_screen.c:1422. Reusing the 16×32
+  -- player box above would letterbox it to half size.
+  monIconCX = 56, monIconCY = 40,
+  monIconW = 32, monIconH = 32,
   charY = 49,
   -- Underscore CreateSprite(base+3,60) 8×8 → TL (base-1, 56)
   underscoreBaseY = 56,
@@ -310,13 +329,15 @@ local function drawPlayerIcon(st)
         if entry and entry.image then
           local iw = entry.w or entry.image:getWidth()
           local ih = entry.h or (entry.quads and entry.h) or entry.image:getHeight()
-          local sc = math.min(L.iconW / iw, L.iconH / ih)
-          local q = entry.quads and (entry.quads[1] or entry.quads[0])
-          local cx, cy = L.iconCX, 40 -- pokefirered/src/naming_screen.c:1422
+          -- A mon icon is 32×32 and fills its frame 1:1; the frontPic fallback
+          -- is 64×64 and shrinks into the same box.
+          local sc = math.min(L.monIconW / iw, L.monIconH / ih)
+          -- pret passes SpriteCallbackDummy, so the icon shows its frame 0.
+          local q = entry.quads and entry.quads[0]
           if q then
-            love.graphics.draw(entry.image, q, cx, cy, 0, sc, sc, iw / 2, ih / 2)
+            love.graphics.draw(entry.image, q, L.monIconCX, L.monIconCY, 0, sc, sc, iw / 2, ih / 2)
           else
-            love.graphics.draw(entry.image, cx, cy, 0, sc, sc, iw / 2, ih / 2)
+            love.graphics.draw(entry.image, L.monIconCX, L.monIconCY, 0, sc, sc, iw / 2, ih / 2)
           end
           return
         end
@@ -705,7 +726,9 @@ function Naming.draw()
 
   -- 5) Title + icon + typed name (above KB)
   love.graphics.setColor(1, 1, 1, 1)
-  drawText(st.title, L.titleX, L.titleY)
+  -- Clamp to the text-entry window so an over-long title cannot spill over the
+  -- frame (pret blits glyphs into the window buffer and clips there).
+  drawText(st.title, L.titleX, L.titleY, { maxWidth = L.titleMaxW })
 
   drawPlayerIcon(st)
 
diff --git a/tests/engine/nickname_mon_icon_scale_bug2319.lua b/tests/engine/nickname_mon_icon_scale_bug2319.lua
new file mode 100644
index 00000000..bcdf503c
--- /dev/null
+++ b/tests/engine/nickname_mon_icon_scale_bug2319.lua
@@ -0,0 +1,123 @@
+-- #2319: the Gen 3 nickname screen drew the mon's 32x32 menu icon at half
+-- size, because the mon branch reused the player OW sprite's 16x32 box.
+-- pret pokefirered/src/naming_screen.c:1422 CreateMonIcon(species,
+-- SpriteCallbackDummy, 56, 40, ...) draws it unscaled, showing frame 0.
+package.path = "./?.lua;./?/init.lua;" .. package.path
+
+local T = require("tests.harness")
+local check, eq = T.check, T.eq
+love = love or require("tests.love_stub")
+
+local function fakeImage(w, h)
+  return {
+    w = w, h = h,
+    getWidth = function() return w end,
+    getHeight = function() return h end,
+    getDimensions = function() return w, h end,
+  }
+end
+
+-- 32x32 icon frames stacked two high; 64x64 front pic fallback.
+local ICON_IMG = fakeImage(32, 64)
+local PIC_IMG = fakeImage(64, 64)
+local QUAD0, QUAD1 = { frame = 0 }, { frame = 1 }
+
+local monIcon, monFrontPic
+package.loaded["src.core.game3.pokemon"] = {
+  icon = function() return monIcon end,
+  frontPic = function() return monFrontPic end,
+}
+package.loaded["src.ui.game3.stack"] = {
+  push = function() end, pop = function() end,
+  busy = function() return false end, drawOrder = function() return {} end,
+}
+
+local Versions = require("src.import.gba.versions")
+local Naming = require("src.ui.game3.naming")
+
+eq(Naming.L.monIconW, Versions.MON_ICON_W,
+  "mon box width matches the extracted icon width")
+eq(Naming.L.monIconH, Versions.MON_ICON_H,
+  "mon box height matches the extracted icon height")
+
+-- Normalise both draw signatures into one record:
+--   draw(img, quad, x, y, rot, sx, sy, ox, oy)  and  draw(img, x, y, rot, sx, sy, ox, oy)
+local draws = {}
+local realDraw = love.graphics.draw
+love.graphics.draw = function(a, b, c, d, e, f, g, h, i)
+  local rec
+  if type(b) == "table" then
+    rec = { img = a, quad = b, x = c, y = d, rot = e, sx = f, sy = g, ox = h, oy = i }
+  else
+    rec = { img = a, x = b, y = c, rot = d, sx = e, sy = f, ox = g, oy = h }
+  end
+  draws[#draws + 1] = rec
+end
+
+local function render(opts)
+  draws = {}
+  Naming.open(opts)
+  local ok, err = pcall(Naming.draw)
+  Naming.dismiss()
+  return draws, ok, err
+end
+
+local function drawsOf(ds, img)
+  local out = {}
+  for _, d in ipairs(ds) do
+    if d.img == img then out[#out + 1] = d end
+  end
+  return out
+end
+
+-- The mon icon: 1:1 on the (56, 40) frame centre, static frame 0.
+monIcon = { image = ICON_IMG, w = 32, h = 32, sheetH = 64, frames = 2,
+            quads = { [0] = QUAD0, [1] = QUAD1 } }
+monFrontPic = nil
+local ds, ok, err = render({ template = "NICKNAME", species = 1, maxLen = 10 })
+check(ok, "nickname draw runs headless: " .. tostring(err))
+local icon = drawsOf(ds, ICON_IMG)
+eq(#icon, 1, "the mon icon is drawn once")
+local d = icon[1] or {}
+eq(d.quad, QUAD0, "static frame 0, not the 1px-shifted frame 1")
+eq(d.x, 56, "icon centre x = 56 (naming_screen.c:1422)")
+eq(d.y, 40, "icon centre y = 40 (naming_screen.c:1422)")
+eq(d.rot, 0, "no rotation")
+eq(d.sx, 1, "32x32 icon drawn 1:1, not the player box's 0.5")
+eq(d.sy, 1, "uniform scale")
+eq(d.ox, 16, "origin x is the frame centre, so the draw covers the frame")
+eq(d.oy, 16, "origin y is the frame centre")
+
+-- frontPic fallback: 64x64 shrunk into the same 32x32 box (was 0.25).
+monIcon = nil
+monFrontPic = { image = PIC_IMG, w = 64, h = 64 }
+local ds2 = render({ template = "CAUGHT_MON", species = 4 })
+local pic = drawsOf(ds2, PIC_IMG)
+eq(#pic, 1, "the front-pic fallback is drawn once")
+eq(pic[1] and pic[1].x, 56, "fallback keeps the mon centre x")
+eq(pic[1] and pic[1].y, 40, "fallback keeps the mon centre y")
+eq(pic[1] and pic[1].sx, 0.5, "64x64 fallback fills the 32x32 mon box")
+eq(pic[1] and pic[1].sy, 0.5, "uniform fallback scale")
+eq(pic[1] and pic[1].ox, 32, "fallback origin is the pic centre")
+
+-- Player/rival slot: still the 16x32 OW box.
+monIcon, monFrontPic = nil, nil
+local portrait = fakeImage(64, 64)
+local ds3 = render({ template = "PLAYER", icon = portrait })
+local p = drawsOf(ds3, portrait)
+eq(#p, 1, "the player-slot portrait is drawn once")
+eq(p[1] and p[1].x, 56, "player slot keeps its OW centre x")
+eq(p[1] and p[1].y, 37, "player slot keeps its OW centre y")
+eq(p[1] and p[1].sx, 0.25, "player OW box math is unchanged (16/64)")
+eq(p[1] and p[1].sy, 0.25, "player OW box scale is uniform")
+eq(p[1] and p[1].ox, 32, "player OW origin is the portrait centre")
+
+-- Guard: the mon icon is never letterboxed below 1:1 again.
+for _, dl in ipairs({ ds, ds2 }) do
+  for _, e in ipairs(drawsOf(dl, ICON_IMG)) do
+    check((e.sx or 0) >= 1, "mon icon scale is never below 1:1")
+  end
+end
+
+love.graphics.draw = realDraw
+T.finish()
diff --git a/tests/engine/nickname_title_fits_box_bug2319.lua b/tests/engine/nickname_title_fits_box_bug2319.lua
new file mode 100644
index 00000000..7061e6cc
--- /dev/null
+++ b/tests/engine/nickname_title_fits_box_bug2319.lua
@@ -0,0 +1,132 @@
+-- #2319 (second report): the nickname screen's title ran past the right edge of
+-- the text box. The catch flow hand-wrote "YOUR POKEMON'S NICKNAME?" (141px in a
+-- 127px window), where pret composes gSpeciesNames[mon] + gText_PkmnsNickname:
+--   pokefirered/src/naming_screen.c:1712 DrawMonTextEntryBox
+--   pokefirered/src/strings.c:772        gText_PkmnsNickname = "'s nickname?"
+-- sWindowTemplates[WIN_TEXT_ENTRY_BOX] = {tilemapLeft 9, width 16} → screen
+-- x 72..200, text printed at (1,1) → x 73, so the budget is 127px.
+package.path = "./?.lua;./?/init.lua;" .. package.path
+
+local T = require("tests.harness")
+local check, eq = T.check, T.eq
+love = love or require("tests.love_stub")
+
+-- --- exact GBA advance widths, from the extracted FRLG latin font ------------
+local function loadTable(path, pattern)
+  local f = io.open(path, "r")
+  if not f then return nil end
+  local src = f:read("*a")
+  f:close()
+  local t = {}
+  for a, b in src:gmatch(pattern) do t[tonumber(a)] = tonumber(b) end
+  return t
+end
+
+local widths = loadTable("src/import/gba/chrome/fonts/latin_widths.lua", "%[(%d+)%]%s*=%s*(%d+)")
+check(widths ~= nil and next(widths) ~= nil, "latin glyph widths are loadable")
+
+-- TextIR.CHARMAP: glyph id -> character, inverted to character -> glyph id.
+local charmap = require("src.core.game3.scripting.text_ir").CHARMAP
+local glyphOf = {}
+for gid, ch in pairs(charmap) do
+  if type(gid) == "number" and type(ch) == "string" and #ch == 1 then
+    glyphOf[ch] = gid
+  end
+end
+check(next(glyphOf) ~= nil, "TextIR.CHARMAP is invertible to character -> glyph id")
+
+local function px(s)
+  local total = 0
+  for i = 1, #s do
+    local gid = glyphOf[s:sub(i, i)]
+    if gid then total = total + (widths[gid] or 0) end
+  end
+  return total
+end
+
+local LEFT, BUDGET = 73, 127 -- text-entry window starts at x=73, 127px of room
+local function endsAt(s) return LEFT + px(s) end
+
+-- --- the reported string genuinely overflowed -------------------------------
+local reported = "YOUR POKEMON'S NICKNAME?"
+check(px(reported) > BUDGET,
+  ("the old hardcoded title (%dpx) really did overflow the %dpx window"):format(px(reported), BUDGET))
+check(endsAt(reported) > 200,
+  "the old title ran past the window's right edge (x=200)")
+
+-- --- Naming.monTitle mirrors pret -------------------------------------------
+local Naming = require("src.ui.game3.naming")
+eq(type(Naming.monTitle), "function", "Naming.monTitle exists")
+eq(Naming.monTitle("CHARMANDER"), "CHARMANDER's nickname?",
+  "mon title is gSpeciesNames[mon] + gText_PkmnsNickname")
+eq(Naming.monTitle("BULBASAUR"), "BULBASAUR's nickname?", "title tracks the species")
+check(Naming.monTitle("CHARMANDER") ~= Naming.monTitle("SQUIRTLE"),
+  "title is species-derived, not a fixed caption")
+eq(Naming.monTitle(nil), "POKéMON's nickname?", "a missing name falls back safely")
+
+-- --- every real species title fits the window -------------------------------
+-- Longest real species names (both 10 characters) plus the widest 10-character
+-- name the font can produce: a strict upper bound over all caps names.
+for _, name in ipairs({ "CHARMANDER", "FORRETRESS", "MASQUERAIN", "BUTTERFREE" }) do
+  local title = Naming.monTitle(name)
+  check(endsAt(title) <= 200,
+    ("%q ends at x=%d, inside the box (<=200)"):format(title, endsAt(title)))
+end
+
+local widest = {}
+for ch in pairs(glyphOf) do
+  if ch:match("^[A-Z]$") then widest[#widest + 1] = ch end
+end
+table.sort(widest, function(a, b)
+  local wa, wb = widths[glyphOf[a]] or 0, widths[glyphOf[b]] or 0
+  if wa == wb then return a < b end
+  return wa > wb
+end)
+local worstName = table.concat({ widest[1], widest[2], widest[3], widest[4], widest[5],
+                                 widest[6], widest[7], widest[8], widest[9], widest[10] })
+local worstTitle = Naming.monTitle(worstName)
+check(endsAt(worstTitle) <= 200,
+  ("worst-case 10-char name %q ends at x=%d, still inside the box"):format(worstTitle, endsAt(worstTitle)))
+
+-- --- the screen clamps the title to the window ------------------------------
+-- pret blits glyphs into the window buffer (CopyGlyphToWindow), which clips at
+-- the window edge; the port must pass that window as maxWidth rather than the
+-- generic 240 default, which would let text run over the frame art.
+eq(Naming.L.titleMaxW, BUDGET, "L.titleMaxW is the text-entry window's usable width")
+eq(Naming.L.titleX, LEFT, "the title still starts at the window's left edge")
+
+local FrlgFont = require("src.ui.game3.frlg_font")
+local realDraw = FrlgFont.draw
+local seen = {}
+FrlgFont.draw = function(text, x, y, opts)
+  seen[#seen + 1] = { text = text, x = x, y = y, maxWidth = opts and opts.maxWidth }
+  return 0
+end
+
+package.loaded["src.core.game3.pokemon"] = {
+  icon = function() return nil end,
+  frontPic = function() return nil end,
+}
+package.loaded["src.ui.game3.stack"] = {
+  push = function() end, pop = function() end,
+  busy = function() return false end, drawOrder = function() return {} end,
+}
+
+local title = Naming.monTitle("BUTTERFREE")
+Naming.open({ template = "CAUGHT_MON", species = 12, maxLen = 10, title = title })
+local ok, err = pcall(Naming.draw)
+Naming.dismiss()
+FrlgFont.draw = realDraw
+check(ok, "nickname draw runs headless: " .. tostring(err))
+
+local drawn
+for _, s in ipairs(seen) do
+  if s.text == title then drawn = s end
+end
+check(drawn ~= nil, "the title is drawn as its own run")
+eq(drawn and drawn.x, LEFT, "title drawn at the window's left edge")
+eq(drawn and drawn.y, 33, "title drawn at the template's y")
+eq(drawn and drawn.maxWidth, BUDGET,
+  "title is clamped to the window, not the 240px default that overran the frame")
+
+T.finish()
diff --git a/tests/game3_nickname_test.lua b/tests/game3_nickname_test.lua
index 44c7a23a..b2332806 100644
--- a/tests/game3_nickname_test.lua
+++ b/tests/game3_nickname_test.lua
@@ -124,7 +124,7 @@ for _, key in ipairs(expectedKeys) do
 end
 
 -- Check Naming screen layout coordinates match pokefirered
-Naming.open({ template = "NICKNAME", species = 1, maxLen = 10, title = "YOUR POKEMON'S NICKNAME?" })
+Naming.open({ template = "NICKNAME", species = 1, maxLen = 10, title = Naming.monTitle("BULBASAUR") })
 check(Naming.isOpen(), "Naming screen is open")
 
 -- Verify species icon positioning at (56, 40)