Martinez Creek may refer to the following watercourses:
California Martinez Creek (S. Fork San Jacinto River), is a stream in Riverside County, California
Texas Martinez Creek (San Antonio, Texas) in San Antonio, Bexar County, Texas. Martinez Creek (Wilson and Bexar counties, Texas) with source near Martinez in Bexar County, Texas, and mouth in Wilson County, Texas. Martinez Creek (Goliad County) near Goliad, Goliad County, Texas.