Clarence James "Bubber" Jonnard (November 23, 1897 – August 12, 1977) was a Major League Baseball catcher.

[2] Players he signed as Mets' scout included Ed Kranepool, Nino Espinosa, Mike Jorgensen, Ken Singleton and Leroy Stanton.

[2][4] He played for several minor league teams, including the San Antonio Bronchos, Norfolk Mary Janes, Nashville Volunteers, Wichita Falls Spudders, Houston Buffaloes, Rochester Red Wings, Jersey City Skeeters, Dallas Steers and Fort Worth Cats.

He has also been incorrectly identified as the manager of the Minneapolis Millerettes of the All-American Girls Professional Baseball League during the 1944 season.

His twin brother Claude Jonnard was a Major League pitcher for the New York Giants, St. Louis Browns and Chicago Cubs between 1921 and 1929.