Ludwig Ernstsson (born 29 April 1972) is a Swedish retired football striker.
He grew up in both Räppe and ÃÂr, since his parents were separated. He joined ÃÂsters IF, made his senior debut in 1992 and joined Kongsvinger IL in 1997. Here he scored ten Norwegian Premier League goals in 1997 and 1998. In the middle of the season he left Kongsvinger for Austria Wien. He stayed here until 2000, when he returned to ÃÂster.
After retiring he became a youth coach. In 2009, he was promoted to assistant coach for the senior team. In July 2010 he was promoted to head coach, only to be replaced two months later - following a six-game losing streak - by Hans Gren. Another two months later, on 10 November, it was announced that Ernstsson and ÃÂster parted ways for the time being.