Ganesh vs Ganesha

Ganesh and Ganesha both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ganesh	Yes	No	No	No
Ganesha	Yes	No	No	No

As nouns, Ganesh and Ganesha are synonyms defined as:

Ganesh and Ganesha: Hindu god of wisdom or prophecy; the god who removes obstacles

Other synonyms of Ganesh include Ganapati, Ganesa.

Ganesh (noun)	Ganesha (noun)
Hindu god of wisdom or prophecy; the god who removes obstacles	Hindu god of wisdom or prophecy; the god who removes obstacles