Greg or Gregory Jackson may refer to: Greg Jackson (American football) (born 1966), American football player Greg Jackson (basketball, born 1952) (1952–2012), NBA player Greg Jackson (basketball, born 1959), college basketball head coach Greg Jackson (MMA trainer), mixed martial arts coach, founder of Jackson's Submission Fighting Greg Jackson (rugby union) (born 1996), South African rugby union player Gregory Jackson (singer/songwriter) (born 1955), American funk musician, songwriter and record producer Onision (born 1985) American YouTuber, controversial satirical comedy, created the banana song.