Nicholas Joseph "Mickey" Witek (December 19, 1915 – August 24, 1990) was an American professional baseball player.

A native of Luzerne, Pennsylvania, he threw and batted right-handed and was listed as 5 feet 10 inches (1.78 m) tall, and weighing 170 pounds (77 kg).

He led the Senior Circuit in singles (172) and finished 12th in the National League Most Valuable Player voting.

In 1944–45 Witek's career was interrupted while he served in the United States Coast Guard during World War II.

[1][2] His playing time diminished with the Giants in 1946 as Buddy Blattner claimed the regular second base job, and Witek finished his major league career with one at bat for the 1949 Yankees, as a pinch hitter, singling against Mel Parnell of the Boston Red Sox.