diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b4b770ad..4ad40f043 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+- added World Animal Day
+
 ## [3.23.11](https://github.com/commenthol/date-holidays/compare/3.23.10...3.23.11) (2024-04-17)
 
 - add corpus christi holiday in São Paulo, SP, BR [7cedeeb8](https://github.com/commenthol/date-holidays/commit/7cedeeb8a8dcde71cf4eeedda7ecefec723ee2c6)
diff --git a/LICENSE b/LICENSE
index 68800c0fa..83a00e4fd 100644
--- a/LICENSE
+++ b/LICENSE
@@ -161,6 +161,7 @@ https://en.wikipedia.org/wiki/Suriname#National_holidays
 https://en.wikipedia.org/wiki/Vesak
 https://en.wikipedia.org/wiki/Vesak#Dates_of_observance
 https://en.wikipedia.org/wiki/Washington%27s_Birthday
+https://en.wikipedia.org/wiki/World_Animal_Day
 https://es.m.wikipedia.org/wiki/Calendario_laboral
 https://es.wikipedia.org/wiki/Anexo:Dís_festivos_en_Colombia
 https://es.wikipedia.org/wiki/Anexo:Festividades_y_celebraciones#Panam.C3.A1
diff --git a/data/names.yaml b/data/names.yaml
index 46996dfed..cc9d39c26 100644
--- a/data/names.yaml
+++ b/data/names.yaml
@@ -295,6 +295,13 @@ names:
       pt: Dia de Finados
       vi: Lễ Các Đẳng
       lt: Vėlinės
+  10-04:
+    name:
+      en: World Animal Day
+      de: Welttierschutztag
+      es: Día de los Animales
+      fr: Journée mondiale des Animaux
+      nl: Dierendag
   11-11:
     name:
       en: Saint Martin