Pete Rose had a 44 game hitting streak in 1978.
George Brett had a 30-game hitting streak.
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
30 by Willy Taveras in 2006
35 by Luis Castillo in 2002
31 by Vladimir Guerrero in 1999
28 by Gabe Kapler in 2000