Feliks Aleksanders Zemdegs (, Latvian: Fēlikss Zemdegs; born 20 December 1995) is an Australian Rubik's Cube speedsolver. He is the only speedcuber ever to win the World Cube Association World Championship twice, winning in 2013 and 2015, and is widely considered the most successful and the greatest speedcuber of all time. He has set more than 350 records across various speedcubing events: 121 world records, 210 continental records, and 6 national records.
