Ovidiu George Ionescu (born 28 June 1989) is a Romanian professional table tennis player who plays with Post SV Mühlhausen and SCM Gloria Buzău.
Ionescu competed at the 2016 Summer Olympics in the singles event, in which he was eliminated in the third round by Marcos Freitas.
In September 2018, Ionescu reached his first European Championships final but lost to No.1 seed Timo Boll. He defeated holder of the continental title Emmanuel Lebesson in the second round, 6th seed Jonathan Groth in the round of 16, 9th seed Vladimir Samsonov in the quarterfinals and 8th seed Kristian Karlsson in the semi-finals.