diff --git a/src/core/game3/pokemon.lua b/src/core/game3/pokemon.lua
index 555cdd34..9dd36b35 100644
--- a/src/core/game3/pokemon.lua
+++ b/src/core/game3/pokemon.lua
@@ -1160,8 +1160,18 @@ function Pokemon.replaceMove(mon, slot, newMoveId)
   return old
 end
 
+-- An egg reads as the language's own EGG whatever its nickname holds: pret's
+-- GetMonData(MON_DATA_NICKNAME) returns gText_EggNickname for any egg
+-- (pokefirered/src/pokemon.c:3020).  The stored nickname is only a placeholder
+-- -- the cart's daycare writes タマゴ (daycare.c:1100), this engine "EGG".
+local function eggName(mon)
+  if Pokemon.isEgg(mon) then return Strings("EGG") end
+end
+
 function Pokemon.displayMonName(mon)
   if not mon then return "POKéMON" end
+  local egg = eggName(mon)
+  if egg then return egg end
   local nick = mon.nickname
   if type(nick) == "string" and nick ~= "" then return nick end
   if mon.name and mon.name ~= "" then return mon.name end
@@ -1572,6 +1582,8 @@ end
 
 function Pokemon.displayName(mon)
   if not mon then return "?????" end
+  local egg = eggName(mon)
+  if egg then return egg end
   if mon.nickname and mon.nickname ~= "" then return tostring(mon.nickname) end
   -- Prefer pack name over host species string when we can resolve.
   local sp = Pokemon.speciesOf(mon)
diff --git a/tests/engine/game3_egg_display_name_test.lua b/tests/engine/game3_egg_display_name_test.lua
new file mode 100644
index 00000000..994d3e77
--- /dev/null
+++ b/tests/engine/game3_egg_display_name_test.lua
@@ -0,0 +1,44 @@
+#!/usr/bin/env luajit
+-- An egg is named by the language's own EGG, as pret's GetMonData(MON_DATA_NICKNAME)
+-- does for any egg (pokefirered/src/pokemon.c:3020): the party and every screen
+-- that names a mon through Pokemon.displayName / displayMonName show it, whatever
+-- placeholder the egg's nickname stores.
+
+package.path = "./?.lua;./?/init.lua;" .. package.path
+love = require("tests.love_stub")
+
+local T = require("tests.harness")
+local check = T.check
+
+local Strings = require("src.core.Strings")
+local Pokemon = require("src.core.game3.pokemon")
+
+-- A minimal pack, so no ROM is needed.
+Pokemon._names = { [25] = "PIKACHU", [172] = "PICHU" }
+
+local egg = { species = 172, isEgg = true, nickname = "EGG", name = "EGG" }
+local hatched = { species = 172, isEgg = false, nickname = "", name = "PICHU" }
+local named = { species = 25, nickname = "SPARKY" }
+
+Strings.load({})
+check(Pokemon.displayName(egg) == "EGG", "an egg reads EGG with no catalog")
+check(Pokemon.displayMonName(egg) == "EGG", "in both name helpers")
+
+Strings.load({ strings = { EGG = "OEUF" } })
+check(Pokemon.displayName(egg) == "OEUF", "an egg follows the catalog's EGG")
+check(Pokemon.displayMonName(egg) == "OEUF", "in both name helpers")
+check(egg.nickname == "EGG", "without its stored nickname being rewritten")
+
+local bare = { species = 172, isEgg = true, nickname = "" }
+check(Pokemon.displayName(bare) == "OEUF", "an egg with no nickname at all is still named EGG")
+local species_only = { species = 412, nickname = "" }
+check(Pokemon.displayName(species_only) == "OEUF", "and so is one known only by the egg species")
+
+-- (looking up a species the pack lacks reloads it; put the minimal one back)
+Pokemon._names = { [25] = "PIKACHU", [172] = "PICHU" }
+check(Pokemon.displayName(hatched) == "PICHU", "a hatched egg goes back to its species name")
+check(Pokemon.displayName(named) == "SPARKY", "and a nicknamed mon keeps its nickname")
+check(Pokemon.displayMonName(named) == "SPARKY", "in both name helpers")
+
+Strings.load({})
+T.finish("game3_egg_display_name_test")