* Cati bach: This is the most common and literal translation. "Cati" means "cat" and "bach" means "little".
* Cati fachgen: This translates to "little boy cat" and is more commonly used for a young, male cat.
* Cati ferch: This translates to "little girl cat" and is more commonly used for a young, female cat.
You can also use "cath bach" which is a more formal way of saying "little cat". "Cath" is the formal word for "cat".
The best way to say "little cat" depends on the specific situation and the cat's gender.