Mamikon Khachatryan (born 18 February 2007) is an Armenian artistic gymnast. He is the 2025 European and 2023 Junior World silver medalist on pommel horse.
Khachatryan was born in Armenia in 2007. He started gymnastics training at the Albert Azaryan Sports School when he was five years old because his parents wanted him to burn off excess energy.
Khachatryan competed at the 2022 European Championships where he placed fourth on pommel horse.
In late March Khachatryan competed at the 2023 Junior World Championships alongside Erik Baghdasaryan and Hamlet Manukyan. As a team they finished fourth, 0.437 points behind third place Italy. Individually Khachatryan qualified to the pommel horse final. During apparatus event finals Khachatryan won silver on pommel horse behind compatriot Manukyan. Khachatryan next competed at the 2023 European Youth Olympic Festival alongside Manukyan and Robert Gyulumyan; together they won bronze as a team and individually Khachatryan won gold on pommel horse.
Khachatryan competed at the 2024 European Championships where he won bronze on pommel horse.
Khachatryan became age-eligible for senior level competition in 2025. He made his senior debut at the Cottbus World Cup where he finished fourth on pommel horse. Khachatryan next competed at the World Cups in Osijek and Doha where he finished fourth and seventh. At the 2025 European Championships Khachatryan won silver on pommel horse behind Manukyan.
Khachatryan competed at the 2025 World Championships where he won silver on pommel horse. In doing so he earned Armenia's highest placement ever on the apparatus at a World Championships, beating Harutyun Merdinyan's previous bronze medal finishes in 2015 and 2022.
Khachatryan competed at the 2026 Cottbus World Cup where he won silver on pommel horse behind Gabriele Targhetta. Khachatryan and the rest of the Armenian delegation were scheduled to compete at the Antalya World Cup; however flight disruptions in the Middle East caused them to be unable to travel to Antalya in time for the competition.