John Arnold Niggeling (July 10, 1903 – September 16, 1963) was an American professional baseball pitcher who appeared in 184 games in Major League Baseball over all or parts of nine seasons (1938–1946) with the Boston Bees / Braves, Cincinnati Reds, St. Louis Browns and Washington Senators.

Born in Remsen, Iowa, Niggeling entered pro baseball in 1928 and promptly won 51 games over his first three minor league seasons.

He had two brief National League trials with the 1938 Bees and 1939 Reds, totaling 421⁄3 innings pitched, before he was acquired by the Browns in January 1940.

In the American League over the next six seasons, Niggeling would exceed 150 innings pitched each year, win 56 games, and place in the Junior Circuit's top ten pitchers in earned run average three times (1942–1944), and strikeouts twice (1942 and 1944).

He won a career-high 15 games with the Browns in 1942 before joining the wartime Senators, who in both 1944 and 1945 fielded a starting rotation featuring four knuckleballers (Mickey Haefner, Dutch Leonard and Roger Wolff were the others).