Mowen Boino (born 16 December 1979 in Port Moresby, National Capital District) is a Papua New Guinean track and field athlete, who specialized in 400 metres and in 400 metres hurdles.
He is a three-time Olympian and four-time national record holder for the 400 m hurdles.
He also achieved his personal best time of 50.37 seconds at the 2006 Commonwealth Games in Melbourne, Australia.Boino first competed at the 2000 Summer Olympics in Sydney, where he set a national record for Papua New Guinea in the 400 m hurdles, with a possible fastest time of 51.38 seconds.
He continued to improve his athletic performance at the 2004 Summer Olympics in Athens, when he finished last in the fourth heat of the men's 400 m hurdles, by forty-one hundredths of a second ahead of his national record set from Sydney, with a time of 50.97 seconds.
At the 2008 Summer Olympics in Beijing, Boino competed again for the men's 400 m hurdles.