Share He told the outlet that one of his mentors when he was younger also had the name Sean - standing at 6'8 - and that they flipped nicknames 'just to be funny,' with him being called Big Sean while his mentor had the nickname Little Sean. 'I got the name growing up in Detroit,' the rapper said. The musical artist, in an Instagram Stories post Monday, stood next to his 5'10 friend Ronnie in friend to illustrate the height differential he was referring to Big Sean said that people consider often have a misconception that he's about 5'6, adding, 'No, for real, I probably grew like a couple of inches'