| Grover M. Moscowitz | |
| Office: | Judge of the United States District Court for the Eastern District of New York |
| Term Start: | December 21, 1925 |
| Term End: | March 31, 1947 |
| Appointer: | Calvin Coolidge |
| Predecessor: | Edwin Louis Garvin |
| Successor: | Leo F. Rayfiel |
| Birth Name: | Grover M. Moscowitz |
| Birth Date: | 31 August 1886 |
| Birth Place: | Hot Springs, Arkansas |
| Death Place: | New York City, New York |
| Education: | New York University School of Law (LL.B.) |
Grover M. Moscowitz (August 31, 1886 – March 31, 1947) was a United States district judge of the United States District Court for the Eastern District of New York.
Born in Hot Springs, Arkansas, Moscowitz received a Bachelor of Laws from New York University School of Law in 1906. He was in private practice of law in Brooklyn, New York from 1907 to 1925. He was a special deputy state attorney general of New York from 1909 to 1910 and from 1922 to 1925.
Moscowitz was nominated by President Calvin Coolidge on December 16, 1925, to a seat on the United States District Court for the Eastern District of New York vacated by Judge Edwin Louis Garvin. He was confirmed by the United States Senate on December 21, 1925, and received his commission the same day. His service was terminated on March 31, 1947, due to his death in New York City, New York.