| Merrill P. Barber | |
| Birth Date: | 18 December 1910[1] |
| Birth Place: | Marshall, Missouri |
| Death Date: | [2] |
| Death Place: | Indian River County, Florida |
| Residence: | Vero Beach, Florida |
| Office1: | Member of the Florida Senate from the 12th District |
| Term Start1: | 1954 |
| Term End1: | 1958 |
| Predecessor1: | Evans Crary |
| Successor1: | Harry J. Kicliter |
| Office2: | Member of the Florida Senate from the 29th District |
| Term Start2: | 1963 |
| Term End2: | 1968 |
| Predecessor2: | Edwin G. Fraser |
| Successor2: | Beth Johnson |
| Office3: | Mayor of Vero Beach, Florida |
| Order3: | 8th |
| Term Start3: | December 10, 1947 |
| Term End3: | December 14, 1949 |
| Predecessor3: | Alexander MacWilliam, Sr. |
| Successor3: | Alexander MacWilliam, Sr. |
| Party: | Democratic |
| Spouse: | Helen Clarkson Barber (m. March 9, 1931)[3] |
| Children: | Helen C. Barber Stabile, Carolyn E. Barber |
Merrill P. Barber (December 18, 1910 – December 21, 1985) was the mayor of Vero Beach, Florida from December 10, 1947, to December 14, 1949. He was a member of the Florida Senate from the 12th District from 1954 to 1958 and from the 29th District from 1963 to 1968.
He was born in Marshall, Missouri in 1911, the son of Merrill J Barber and Lelia E Barber. He came with his family to Vero Beach in 1913 at the age of three.[4]
He was President of the Indian River County Citrus Bank.