CA35 or CA-35 may refer to:
California's 35th congressional district California State Route 35 California State Route 35 (1934–1964), the road originally designated California State Route 35 , a United States Navy heavy cruiser Calcium-35 (Ca-35 or 35Ca), an isotope of calcium Takatsuka Station, a railway station in Hamamatsu, Japan (station code: CA35)