Daiji Morii

Daiji Morii (born 4 August 1967) is a Japanese former professional tennis player.

Morii reached a best singles ranking of 446 on the professional tour, which included a qualifying draw appearance at the Wimbledon Championships. He was a singles quarter-finalist at the Réunion Island Challenger in 1993, with wins over Éric Winogradsky and Mark Kaplan. His only ATP Tour main draw came in doubles at the 1996 Japan Open.