Samuel Augustus Bridges (January 27, 1802 – January 14, 1884) was a Democratic member of the U.S. House of Representatives from Pennsylvania. Samuel A. Bridges was born in Colchester, Connecticut. He pursued an academic course, and was graduated from Williams College in Williamstown, Massachusetts, in 1826. He studied law, was admitted to the bar in 1829 and commenced practice in Doylestown, Pennsylvania. He moved to Allentown, Pennsylvania, in 1830, where he continued the practice of law. He served as town clerk from 1837 to 1842, and deputy attorney general of the State for Lehigh County, Pennsylvania, from 1837 to 1844. He was a delegate to the Democratic State convention in 1841.