Hakkı Harun Erdenay (born 27 May 1968 in Ankara) (nickname: "Pegasus") is a Turkish former professional basketball player, and he is a Vice President of the Turkish Basketball Federation.

At a height of 1.91 m (6'3") tall, he played in shooting guard and small forward positions.

During his pro career, Erdenay was a three-time Top Scorer of the Turkish Super League, in 1990, 1993, and 2005.

Erdenay was married to Gergana Branzova, a Bulgarian former basketball player.

In 2023, Erdenay married to his longtime girlfriend, Turkish-American business woman Pinar Senyilmaz who works for GE HealthCare, as Director of Strategic Academic Accounts in Interventional Radiology for Canada and USA.