George Brett had a 30-game hitting streak.
Pete Rose had a 44 game hitting streak in 1978.
Mickey Mantle's longest hitting streak was 16 games.
In 1941 Joe Dimaggio of the New York Yankees had a 56 game hit streak which is the longest in MLB history
39 by Paul Molitor in 1987
28 by Gabe Kapler in 2000
31 by Ken Landreaux in 1980