C. P. Huntington is a 4-2-4T steam locomotive on static display at the California State Railroad Museum in Sacramento, California, USA. It is the first locomotive purchased by the Southern Pacific Railroad, carrying that railroad's number 1, and it is named after one of the Big Four who founded it.

Under the Whyte notation for the classification of steam locomotives, 4-2-4 represents the wheel arrangement of four leading wheels on two axles, two powered driving wheels on one axle, and four trailing wheels on two axles.