The following are Mario related events that have or will take place in the month of April.
- April 5: WarioWare, Inc.: Mega Party Game$! released in 2004. Mario Kart DS released in 2007 in South Korea.
- April 6: Mario Smash Football released in 2006 in Australia.
- April 9: Yoshi's Story released in 1998 in Europe. Dr. Mario 64 released in 2001 in North America. Super Paper Mario released in 2007 in North America.
- April 10: Mario Kart Wii released in 2008 in Japan.
- April 11: Super Mario World for the SNES released in 1992 in Europe, Mario Kart Wii released in 2008 in Europe.
- April 13: Tetris DS released in 2006 in Australia.
- April 14: Famicom Grand Prix II: 3D Hot Rally released in 1988.
- April 19: Diddy Kong Racing DS released in 2007 in Australia. Super Paper Mario released in 2007 in Japan.
- April 20: Diddy Kong Racing DS released in 2007 in Europe.
- April 21: Super Mario Land released in 1989 in Japan, Tetris DS released on 2006 in Europe.
- April 22: Mario Golf: Advance Tour released on 2004 in Japan. Yoshi's Universal Gravitation released in 2005 in Europe.
- April 24: Mario Kart Wii released in 2008 in Australia.
- April 26: Super Smash Bros. released in 1999. The Super Mario Bros. released in 2008 in South Korea. The Wii was released in South Korea in 2008.
- April 27: Tetris DS released in Japan in 2008, Mario Kart Wii released in 2008.
- April 28: Super Mario Bros. 2 released in 1989 in Europe. Yoshi's Cookie released in 1994 in Europe.
- April 30: Game Boy version of Dr. Mario released in 1991 in Europe.
All release dates are release dates in the United States unless otherwise stated.
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