diff --git a/PKHeX/Legality/Checks.cs b/PKHeX/Legality/Checks.cs
index 89e1ac174..6324c045a 100644
--- a/PKHeX/Legality/Checks.cs
+++ b/PKHeX/Legality/Checks.cs
@@ -312,9 +312,23 @@ private void verifyNickname()
         }
         private void verifyNicknameEgg()
         {
-            if (!pkm.IsNicknamed && (pkm.Format != 7))
-                AddLine(Severity.Invalid, V12, CheckIdentifier.Egg);
-            else if (PKX.getSpeciesNameGeneration(0, pkm.Language, pkm.GenNumber) != pkm.Nickname)
+            switch (pkm.Format)
+            {
+                case 4:
+                    if (pkm.IsNicknamed) // gen4 doesn't use the nickname flag for eggs
+                        AddLine(Severity.Invalid, V224, CheckIdentifier.Egg);
+                    break;
+                case 7:
+                    if (EncounterMatch is EncounterStatic ^ !pkm.IsNicknamed) // gen7 doesn't use for ingame gifts
+                        AddLine(Severity.Invalid, pkm.IsNicknamed ? V224 : V12, CheckIdentifier.Egg);
+                    break;
+                default:
+                    if (!pkm.IsNicknamed)
+                        AddLine(Severity.Invalid, V12, CheckIdentifier.Egg);
+                    break;
+            }
+
+            if (PKX.getSpeciesNameGeneration(0, pkm.Language, pkm.GenNumber) != pkm.Nickname)
                 AddLine(Severity.Invalid, V13, CheckIdentifier.Egg);
             else
                 AddLine(Severity.Valid, V14, CheckIdentifier.Egg);
diff --git a/PKHeX/Legality/LegalityCheckStrings.cs b/PKHeX/Legality/LegalityCheckStrings.cs
index 1e3dbe49f..52fa64f68 100644
--- a/PKHeX/Legality/LegalityCheckStrings.cs
+++ b/PKHeX/Legality/LegalityCheckStrings.cs
@@ -114,7 +114,8 @@ public static class LegalityCheckStrings
         public static string V3 {get; set;} = "Species index invalid for Nickname comparison."; // Invalid
         public static string V20 {get; set;} = "Nickname does not match species name."; // Invalid
         public static string V13 {get; set;} = "Egg name does not match language Egg name."; // Invalid
-        public static string V12 {get; set;} = "Eggs must be nicknamed."; // Invalid
+        public static string V12 {get; set;} = "Egg must be nicknamed."; // Invalid
+        public static string V224 {get; set;} = "Egg must be not nicknamed."; // Invalid
         public static string V7 {get; set;} = "Ingame Trade invalid version?"; // Invalid
         public static string V8 {get; set;} = "Ingame Trade invalid index?"; // Invalid
         public static string V10 {get; set;} = "Ingame Trade OT has been altered."; // Invalid
diff --git a/PKHeX/PKM/PKX.cs b/PKHeX/PKM/PKX.cs
index 20402fdda..1fd3063d6 100644
--- a/PKHeX/PKM/PKX.cs
+++ b/PKHeX/PKM/PKX.cs
@@ -211,7 +211,7 @@ public static string getSpeciesNameGeneration(int species, int lang, int generat
         {
             string nick = getSpeciesName(species, lang);
 
-            if (generation < 5) // All caps GenIV and previous
+            if (generation < 5 && (generation != 4 || species != 0)) // All caps GenIV and previous, except GenIV eggs.
                 nick = nick.ToUpper();
             if (generation < 3)
                 nick = nick.Replace(" ", "");
diff --git a/PKHeX/Resources/text/en/LegalityCheckStrings_en.txt b/PKHeX/Resources/text/en/LegalityCheckStrings_en.txt
index 5f57a86ac..ea0faf8af 100644
--- a/PKHeX/Resources/text/en/LegalityCheckStrings_en.txt
+++ b/PKHeX/Resources/text/en/LegalityCheckStrings_en.txt
@@ -75,7 +75,8 @@ V222 = Cannot be given this Nickname.
 V3 = Species index invalid for Nickname comparison.
 V20 = Nickname does not match species name.
 V13 = Egg name does not match language Egg name.
-V12 = Eggs must be nicknamed.
+V12 = Egg must be nicknamed.
+V224 = Egg must be not nicknamed.
 V7 = Ingame Trade invalid version?
 V8 = Ingame Trade invalid index?
 V10 = Ingame Trade OT has been altered.
diff --git a/PKHeX/Resources/text/ko/LegalityCheckStrings_ko.txt b/PKHeX/Resources/text/ko/LegalityCheckStrings_ko.txt
index 92f65f636..51c767771 100644
--- a/PKHeX/Resources/text/ko/LegalityCheckStrings_ko.txt
+++ b/PKHeX/Resources/text/ko/LegalityCheckStrings_ko.txt
@@ -77,6 +77,7 @@ V3 = 이름 비교에 사용할 포켓몬 종류 인덱스가 잘못되었습니
 V20 = 이름이 포켓몬 종류와 일치하지 않습니다.
 V13 = 알 이름이 언어별 알 이름과 일치하지 않습니다.
 V12 = 알은 반드시 이름 플래그가 켜져 있어야 합니다.
+V224 = Egg must be not nicknamed.
 V7 = 게임 내 교환의 버전이 잘못되었을 수 있습니다.
 V8 = 게임 내 교환의 인덱스가 잘못되었을 수 있습니다.
 V10 = 게임 내 교환의 어버이가 달라졌습니다.
diff --git a/PKHeX/Resources/text/zh/LegalityCheckStrings_zh.txt b/PKHeX/Resources/text/zh/LegalityCheckStrings_zh.txt
index 51f88f03b..6ed2c6566 100644
--- a/PKHeX/Resources/text/zh/LegalityCheckStrings_zh.txt
+++ b/PKHeX/Resources/text/zh/LegalityCheckStrings_zh.txt
@@ -77,6 +77,7 @@ V3 = 宝可梦种类无法用于昵称对比
 V20 = 昵称与种类名不一致。
 V13 = 蛋名称与语言不一致。
 V12 = 蛋必须有昵称。
+V224 = Egg must be not nicknamed.
 V7 = 游戏内连接交换版本不合法?
 V8 = 游戏内连接交换序号不合法?
 V10 = 游戏内连接交换的初训家被修改。