James Barnett
James or Jim Barnett may refer to:
Politicians
- Jim Barnett (Kansas politician), American politician
- Jim Barnett (Mississippi politician), American physician and politician
- James Barnett (MP), English politician, MP for Rochester
- James Barnett (New York politician), New York politician in Madison County, New York
- James R. Barnett, Wisconsin politician
Others
- James Barnett (entrepreneur), American entrepreneur and community activist
- James V. Barnett II, American engineer
- James [Rennie Barnett], Scottish naval architect
- Jim Barnett (basketball), American basketball player and commentator
- Jim Barnett (wrestling), American professional wrestling promoter
- James Barnett, American television writer and the co-creator of the television show ''F Troop''