Arthur Henry Johnson (July 16, 1919 – April 27, 2008) was an American left-handed pitcher in Major League Baseball who played for the Boston Bees/Braves from 1940 through 1942.

Johnson made his major league debut on September 22, 1940, against the New York Giants, pitching the 6th and 7th inning for Boston.

Johnson was a member of the Boston Braves (the team name was changed that year) for the entire season of 1941.

On April 30, in a game against the Chicago Cubs, he got his first major league base hit.

On May 17, he pitched in relief and was credited with his first major league win against the St. Louis Cardinals.

A few days later, on June 4, he pitched another complete game, scattering 9 hits, and knocked the Cardinals out of first place.

Around 1990, with both men long retired, he and Moore were reunited at a baseball players convention and spoke about the incident.

In the book "One Day in Mudville", which was written by Johnson's friend Rip Pallotta, he spoke about this beaning.

From 1943 to 1945 during World War II, Johnson went on to serve in the Navy in the Pacific as a gunner's mate aboard the aircraft carrier USS Langley; he received the Purple Heart after suffering shrapnel wounds to his knees when a Japanese kamikaze crashed into the deck.

In a three-season major league career, Johnson posted a 7–16 record with 71 strikeouts and a 3.68 earned run average in 49 appearances, including 19 starts, six complete games, one save, and 1952⁄3 innings pitched.

Johnson married Loretta Gaffney in May 1942; they had been high school classmates, both being named the most athletic members of their 1938 senior class.