Romance Languages:
* Spanish: Hogar feliz
* French: Un foyer heureux
* Italian: Una casa felice
* Portuguese: Um lar feliz
* Romanian: O casă fericită
Germanic Languages:
* German: Ein glückliches Zuhause
* Dutch: Een gelukkig huis
* Swedish: Ett lyckligt hem
* Norwegian: Et lykkelig hjem
* Danish: Et lykkeligt hjem
Slavic Languages:
* Russian: Счастливый дом (Schastlivy dom)
* Polish: Szczęśliwy dom
* Czech: Šťastný domov
* Ukrainian: Щасливий дім (Schastlivy dim)
Asian Languages:
* Chinese (Mandarin): 幸福的家 (xìngfú de jiā)
* Japanese: 幸せな家 (shiawase na ie)
* Korean: 행복한 집 (haengbokhan jip)
* Hindi: सुखद घर (sukhd ghar)
* Arabic: بيت سعيد (bayt sa'eed)
Other Languages:
* Finnish: Onnellinen koti
* Hungarian: Boldog otthon
* Greek: Ευτυχισμένο σπίτι (Eftychimeno spiti)
* Hebrew: בית מאושר (bayit me'osher)
* Turkish: Mutlu bir ev
This is just a small sample of how "happy home" can be translated. The best translation will depend on the specific context and the intended audience.