Joel Ostrowski (born 5 August 1975) is a Danish curler and curling coach.
At the international level, he is a and a two-time European mixed silver medallist (2007, 2009).
At the national level, he is a three-time Danish men's champion curler (2002, 2003, 2006) and a three-time Danish mixed champion curler (2008, 2009, 2012).