My Big Big Friend (Portuguese: Meu Amigãozão / French: Mon grand grand ami) is an animated children's television series created by Andrés Lieban and Claudia Koogan Breitman, co-produced by Brazilian studio 2D Lab and the Canadian company Breakthrough Animation.

It had its first showing on July 19, 2010 on Discovery Kids Latin America in Spanish as Amigazazo or Mi amigazazo and on May 9, 2011 on TV Brasil. It also premiered in Canada on Treehouse TV on September 5, 2011. It was financed with the laws of federal tax incentives, the Procult (BNDES) and the Audiovisual Sector Fund – FSA.

The show centers around the friendships of three children, Yuri, Lili and Matt, each of whom has a "Big Big Friend" who is invisible to adults and other children but seen by all three friends.

The show is flash-animated with Toon Boom Harmony. A feature-length film based on the series titled: Meu AmigãoZão - O Filme, was released on May 12, 2022 in Brazilian theaters while an English dub version is yet to be released.