| Lawrence Russell Ellzey | |
| State: | Mississippi |
| District: | 7th |
| Term Start: | March 15, 1932 |
| Term End: | January 3, 1935 |
| Predecessor: | Percy Quin |
| Successor: | Dan R. McGehee |
| Birth Date: | 20 March 1891 |
| Birth Place: | Wesson, Mississippi, U.S. |
| Death Place: | Jackson, Mississippi, U.S. |
| Resting Place: | Wesson Cemetery, Wesson, Mississippi, U.S. |
| Party: | Democratic |
Lawrence Russell Ellzey (March 20, 1891 – December 7, 1977) was a U.S. Representative from Mississippi. He also served as president of a junior college. He was a Democrat.
Born on a farm near Wesson, Mississippi, Ellzey attended the rural schools and was graduated from Mississippi College at Clinton, A.B., 1912.He attended the University of Chicago in 1927.He became a teacher in the consolidated county schools of Mississippi between 1912 and 1917.
He volunteered as a private in the Quartermaster Corps on December 13, 1917, and served overseas nine months before being discharged as a first lieutenant on February 20, 1919.
He served as superintendent of education of Lincoln County, Mississippi from 1920 to 1922. He was a teacher in the agricultural high school in Wesson from 1922 to 1928. He served as president of Copiah-Lincoln Junior College in Wesson, Mississippi from 1928 to 1932.
Ellzey was elected as a Democrat to the Seventy-second Congress by special election on March 15, 1932, to fill the vacancy caused by the death of Percy Quin. He was reelected to the Seventy-third Congress and served from March 15, 1932, until January 3, 1935. He was an unsuccessful candidate for renomination in 1934 to the Seventy-fourth Congress.
He later was employed in the life insurance industry. He worked as an executive secretary for the Mississippi Salvage Campaign from 1942 to 1943.
Ellzey died in Jackson, Mississippi on December 7, 1977, aged 86, and was interred in Wesson Cemetery, Wesson, Mississippi.