Petr Mrázek (born February 14, 1992) is a Czech professional ice hockey player who is currently playing with the Ottawa 67's of the Ontario Hockey League. He was selected by the Detroit Red Wings in the 5th round (141st overall) of the 2010 NHL Entry Draft. Prior to coming to North America, Mrázek played in the Czech Extraliga where he appeared in net with HC Vítkovice Steel during the 2007-08 post-season. On April 4, 2011, Mrázek was signed by the Grand Rapids Griffins to an amateur tryout contract. He played his first NHL game against the St. Louis Blues in the shortened 2012-13 season.