Osvaldo Chavarría Quijano (born August 5, 1937) is a former Major League Baseball player.

Chavarría lied about his age, claiming to have been born in 1940 when he originally signed as an amateur free agent with the Chicago Cubs in 1959.

He made his major league debut in left field against the Minnesota Twins at Metropolitan Stadium, and was held hitless by Jim Kaat in four at-bats.

Chavarría was still with the Athletics organization when they moved to Oakland, California prior to the start of the 1968 season.

He was traded to the New York Yankees with Danny Cater for Al Downing and Frank Fernández prior to the start of the 1970 season.