Omari Idd Kimweri (born 22 September 1982) is a Tanzanian-Australian professional boxer who challenged for the WBC strawweight title in 2017. As an amateur he represented Tanzania in the 2006 Commonwealth Games, after which he defected to Australia.
Kimweri has most commonly fought at light-flyweight and flyweight, fighting for and winning several regional titles. He defeated Randy Petalcorin in a controversial split decision to win the WBC Silver flyweight title in April 2016, earning a WBC world title opportunity. He opted to drop weight class to strawweight and challenged WBC champion Wanheng Menayothin in June 2017, but lost by unanimous decision.