Samuel Gross (originally Samuel Marguiles) (May 9, 1891 – September 13, 1934) was a Private in the United States Marine Corps, 23d Company who earned the Medal of Honor for his efforts during the United States occupation of Haiti in 1915.

During the United States occupation of Haiti, he participated in battles against the Caco bandit insurgency.

[1] Rank and organization: Private, U.S. Marine Corps, 23d Co. (Real name is Marguiles, Samuel.)

Following a concentrated drive, several different detachments of marines gradually closed in on the old French bastion fort in an effort to cut off all avenues of retreat for the Caco bandits.

Approaching a breach in the wall which was the only entrance to the fort, Gross was the second man to pass through the breach in the face of constant fire from the Cacos and, thereafter, for a 10-minute period, engaged the enemy in desperate hand-to-hand combat until the bastion was captured and Caco resistance neutralized.