Issachar \i-ssa-char\ as a boy's name is of Hebrew origin, and the meaning of Issachar is "his reward will come". Biblical: one of the twelve sons of Jacob who founded the 12 tribes of Israel.
Issachar has 3 variant forms: Isachar, Yisachar and Yissachar.
For more information, see also the related name Yishachar.