Selah Brewster Strong (May 1, 1792 – November 29, 1872) was an American lawyer and politician from New York, serving one term in the U.S. House of Representatives from 1843 to 1845.

He was born on May 1, 1792[1] at Brookhaven, New York, the son of Judge Thomas Sheppard Strong and Hannah Brewster.

His paternal grandmother was Anna Strong, the only female member of the Culper Ring, based in Setauket, NY.

During the War of 1812 he was commissioned as an ensign and quartermaster in the 10th Regiment, Third Brigade, New York City and County Troops, and in 1815 was promoted successively to lieutenant and captain.

He was master in chancery in 1817, moved to Brookhaven in 1820, and was District Attorney of Suffolk County from 1821 to 1847, except for nine months in 1830.