Margaret Elizabeth Sheridan (October 29, 1926 – May 1, 1982) was an American actress of the early 1950s, and protégée of director Howard Hawks.

She is best remembered for her role as Nikki Nicholson opposite Kenneth Tobey in the 1951 science fiction classic The Thing from Another World.

Sheridan was discovered by Howard Hawks while she was still attending college.

Hawks offered Sheridan the female lead opposite John Wayne in the 1948 film Red River.

Sheridan's career suffered, and she never achieved the fame Hawks had hoped.