Ludvig Rensfeldt (born January 29, 1992) is a Swedish ice hockey player, currently playing with Djurgårdens IF in the HockeyAllsvenskan (Allsv).

Rensfeldt recorded his first Elitserien point with Brynäs IF on November 25, 2010 with an assist on a goal by Alexander Sundström.

[1] Rensfeldt played for Sarnia Sting of the Ontario Hockey League (OHL) during the 2011–12 season, scoring 22 goals and 43 points in 58 games.

In the OHL playoffs he scored 5 points in 6 games before the Sarnia Sting team was eliminated in the Conference Quarter-finals.

[2] In the 2010 U18 World Junior Championships, Sweden got a silver medal after losing the finals against the United States.