Hockey Canada announced Dineen, 50, would lead the women's squad for the remainder of the 2013-14 season, including the 2014 Olympic Winter Games.
The Canadians have won three straight Olympic gold medals, including a victory over the United States in the 2010 championship game at Vancouver.
Hockey Canada women's teams General Manager Melody Davidson said the Toronto native would take over at a "critical time for Canada's national women's team with the start of the Olympics less than two months away, and we feel Kevin is a terrific fit with our staff as we get ready for Sochi."
Dineen led the Panthers to the first Southeast Division title in franchise history in 2011-12, but the squad finished last in the lockout-shortened 2012-13 season with a 15-27-6 record.
He was dismissed Nov. 8 after Florida struggled to a 3-9-4 start this season.
As a player, Dineen was on six Canadian men's team, winning a silver medal at the IIHF World Championship in 1985 and 1989 and taking the Canada Cup in 1987.