There are 8 attractions at Disneyland with height requirements:

Height Requirements at Disneyland
Attraction Height Requirement
Autopia 32"
Gadget's Go Coaster 35"
Big Thunder Mountain Railroad 40"
Splash Mountain 40"
Space Mountain 40"
Star Tours: The Adventures Continue 40"
Matterhorn Bobsleds 42"
Indiana Jones Adventure 46"

Height Requirements at Other Parks