Senator Welch may also refer to:
Members of the United States Senate Adonijah Welch (1821–1889), U.S. Senator from Florida Peter Welch (born 1947), U.S. Senator from Vermont
United States state senate members David E. Welch (1835–after 1900), Wisconsin State Senate Henry Kirke White Welch (1821–1870), Connecticut State Senate James T. Welch (born 1975), Massachusetts State Senate John Welch (politician) (1805–1891), Ohio State Senate Lewis Welch (1814–1878), Michigan State Senate Patrick Welch (1948–2020), Illinois State Senate Richard J. Welch (1869–1949), California State Senate Robert Welch (Wisconsin politician) (born 1958), Wisconsin State Senate William W. Welch (1818–1892), Connecticut State Senate