Adam King (born 11 October 1995) is a Scottish professional footballer who plays for Dundee United in the Scottish Championship as a midfielder. King previously played for Heart of Midlothian and Swansea City, and has also represented Scotland at Under-U18, -19 and -21 levels.
A member of the club's under-20 squad, King was predominantly a midfielder, however could also play right back and centre back. Having yet to feature for the first team in September 2013, with the transfer window coming to a close, Premier League outfit Swansea City made an offer believed to be a five-figure sum of money for King. However, Hearts administrators BDO rejected the offer. Having been included in the match day squad for every game so far that season, yet not featured, he made his first team debut for Heart of Midlothian (Hearts) as a substitute in a friendly against German Bundesliga side Wolfsburg on 13 November 2013. He made his full professional debut in a Scottish Cup tie against Celtic on 1 December 2013, coming on as a substitute in the 79th minute replacing Jamie Hamill. He went on to make his first Scottish Premiership appearance on 21 December, playing from the start against Celtic at Celtic Park.