Gregory Merriman, also known as Greg, (born 3 October 1988) is an Australian ice dancer.
With partner Danielle O'Brien, he is a six-time Australian senior national champion and three-time junior national champion.
They have competed at the World Championships and Four Continents Championships since 2008, and have competed at three World Junior Championships.
They became the first Australian ice dancers to reach the free dance at a World Championships and the second Ice Dance couple from Australia to compete at the Winter Olympics.