Alexander Megos (born 12 August 1993) is a German rock climber.
He was the first climber to on-sight (climb without prior practice or advice) a route graded 9a (5.14d).
He has climbed multiple notably hard routes and boulder problems, including one 9b+ (5.15c) route (Perfecto Mundo), two 9b (5.15b) routes (First Round, First Minute and Fight Club), and some boulder problems with a confirmed 8C (V15) rating.