Mega Brands, Inc., formerly Mega Bloks, Inc., is a Canadian children's toy company currently owned by Mattel. Mega Bloks, a line of construction set toys, is its most popular product. Its other brands include Mega Puzzles, Board Dudes and Rose Art. The company distributes a wide range of toys, puzzles, and craft-based products.
In 2014, Mega Brands' Bloks was second in sales of toy construction building sets.