Gene itself is a nickname.
Famous people named Gene:
Actors Gene Kelly, Gene Wilder, and Gene Hackman; screenwriter Gene Roddenberry.
The main character in The Emoji Movie is named Gene, so never introduce it to your little Gene unless you're cool with watching it on loop.
100+ Bite-Sized One Syllable Middle Names For Your Cool Baby Boy, Fab Four-Letter Names For Boys, Glorious G Names For Baby Boys, Simple One-Syllable Boy Names, Eureka! Science-Inspired Baby Names, Yee-Haw! Boy Names That Are A Little Bit Country, Wonderful Word Names Straight From The Dictionary, Boy Names People Won’t Shorten, Glamorous Names Inspired By Old Hollywood, Short, Sweet Baby Boy Names,