Toshie Oi (大井 利江, Ōi Toshie, born August 27, 1945) is a Paralympianathlete from Japan competing mainly in category F53 discus events.
Toshie has competed at two Paralympics, firstly in Athens in 2004 where he won the silver medal in the F53 discus and secondly in Beijing in 2008 where he won the bronze medal in the combined F53/54 class discus.