Margus Luik (born 11 January 1980) is an Estonian athletics competitor (race walker).^[1]

He was born in Pärnu. In 2002 he graduated from Tallinn Pedagogical University in physical education and recreation.^[1]

He started his athletics exercising in 1990. 1991–2006 his coach was Endel Susi, and he focused on race walking. He is 25-times Estonian champion. 2001–2015 he was a member of Estonian national athletics team.^[1]