Sidney Terris (September 7, 1904 – December 30, 1974) was a top rated American lightweight boxing contender from the lower East Side of Manhattan.

Author Ken Blady noted that Terris's greatest strength, his early speed and constant footwork in the ring, could also be a detriment against more skilled opponents, as it exhausted him and made him less a threat near the end of his fights.

In his first years as a pro, and not yet nineteen, Terris beat exceptional boxer Eddie "Kid" Wagner in a ten-round points decision at the Henderson Bowl in Brooklyn on June 3, 1924 after a previous six round loss.

Impressively, Terris fought Sammy Mandell, 1926-30 Lightweight Boxing Champion, to a ten-round draw at Madison Square Garden on December 17, 1923.

Mandell, however, evaded Terris for the remaining rounds, and with greater energy and speed, somehow won the bout on points by unanimous decision.

At only 23 in early 1928, Terris was the victim of knockouts from the great Jimmy McLarnin, Ray Miller, and on January 28, 1929 from Babe Herman, speeding the end of his career.

The Sarasota Herald-Tribune, wrote "Sid Terris, New York contender for the lightweight championship won a decision from Phil McGraw of Detroit in their ten round contest at Ebbets Field, Brooklyn, tonight."

"[13] As early as 1928, the Milwaukee Journal, wrote that "It begins to look as though Sid Terris, once regarded as the uncrowned Lightweight Champion of the World, has reached the end of his fistic string."

The article also noted that in Terris's only lightweight title fight that "Mandell eked out a hairline decision at a great 15 round match at New York."

"[14] Terris continued to fight after his devastating first round loss to Jimmy McLarnin on February 24, 1928 at Madison Square Garden, but the quality of his competition faded, as did the size of his audience.