Joe Donnelly (born 1955) is a former United States Senator from Indiana. Senator Donnelly may also refer to:
Davis A. Donnelly (1927–2020), Wisconsin State Senate Ignatius L. Donnelly (1831–1901), Minnesota State Senate Ken Donnelly (1950–2017), Massachusetts State Senate Melinda Romero Donnelly (born 1971), Senate of Puerto Rico Thomas F. Donnelly (New York City) (1863–1924), New York State Senate T. W. Donnelly (1874–1963), Arizona State Senate