Thomas Holliday Hicks (1798–1865) was a U.S. Senator from Maryland from 1862 to 1865. Senator Hicks may also refer to:
A. M. Hicks (1835–1915), Mississippi State Senate Carri Hicks (fl. 2010s–present), Oklahoma State Senate Charles P. Hicks (1858–1929), Arizona State Senate Clayton Hicks (1919–1999), Wisconsin State Senate Edward Hicks (pioneer) (1818–1873), Wisconsin State Senate Edwin Hicks (1830–1902), New York State Senate Herbert Hicks (1872–?), Illinois State Senate Larry S. Hicks (born 1958), Wyoming State Senate Paula Hicks-Hudson (born 1951), Ohio State Senate Xenophon Hicks (1872–1952), Tennessee State Senate