Secretary of State
- November 17, 1816 - December 6, 1825, Robert A. New
- January 14, 1825 - January 14, 1829, William W. Wick
- January 14, 1829 - January 14, 1833, James Morrison
- January 14, 1833 - January 14, 1837, William Sheets
- January 14, 1837 - January 14, 1841, William J. Brown
- January 14, 1841 - January 14, 1845, William Sheets
- January 14, 1845 - January 14, 1849, John H. Thompson
- January 14, 1849 - January 14, 1851, Charles H. Test
- January 14, 1851 - January 14, 1853, Charles H. Test
- January 14, 1853 - January 14, 1855, Nehemiah Hayden
- January 14, 1855 - January 14, 1857, Erasmus B. Collins
- January 16, 1857 - October 28, 1858, Daniel McClure
- October 28, 1858 - January 15, 1859, Cyrus L. Dunham
- January 15, 1859 - January 15, 1861, Cyrus L. Dunham
- January 15, 1861 - January 15, 1863, William A. Peelle
- January 16, 1863 - January 16, 1865, James S. Athon
- January 16, 1865 - January 16, 1867, Nelson Trusler
- January 16, 1867 - January 16, 1869, Nelson Trusler
- January 16, 1869- January 16, 1871, Max F.A. Hoffman
- January 16, 1871- February 1, 1872, Norman Eddy
- February 1, 1872 - January 16, 1873, John H. Farquhar
- January 16, 1873 - January 16, 1875, William W. Curry
- January 16, 1875 - January 16, 1879, John E. Neff
- January 16, 1879 - January 16, 1881, John G. Shanklin
- January 16, 1881 - January 16, 1883, Emanuel R. Hawn
- January 16, 1883 - January 16, 1887, William R. Myers
- January 16, 1887 - January 16, 1891, Charles F. Griffin
- January 16, 1891 - January 16, 1893, Claude Matthews
- January 9, 1893 - January 17, 1893, Myron D. King
- January 17, 1893 - January 17, 1895, William R. Meyers
- January 17, 1895 - January 17, 1897, William D. Owen
- January 17, 1897 - January 17, 1899, William D. Owen
- January 17, 1899 - January 17, 1901, Union B. Hunt
- January 17, 1901 - January 17, 1903, Union B. Hunt
- January 17, 1903 - January 17, 1905, Daniel E. Storms
- January 17, 1905 - January 17, 1906, Daniel E. Storms
- April 6, 1906 - November 27, 1906, Fred A. Sims
- November 27, 1906 - November 27, 1908, Fred A. Sims
- November 27, 1908 - November 27, 1910, Fred A. Sims
- November 27, 1910 - November 27, 1912, L.G. Ellingham
- November 27, 1912 - November 27, 1914, L.G. Ellingham
- November 27, 1914 - November 27, 1916, Homer L. Cook
- November 27, 1916 - November 21, 1917, Ed Jackson
- November 22, 1917 - November 27, 1918, William A. Roach
- November 22, 1918 - January 27, 1920, William A. Roach
- January 21, 1920 - November 27, 1922, Ed Jackson
- November 27, 1922 - November 27, 1924, Ed Jackson
- December 1, 1924 - December 1, 1926 Fred Schortemeier
- December 1, 1926 - December 1, 1928, Fred Schortemeier
- December 1, 1928 - December 1, 1930, Otto G. Fifield
- December 1, 1930 - December 1, 1932, Frank Mayr, Jr.
- December 1, 1932 - December 1, 1934, Frank Mayr, Jr.
- December 1, 1934 - December 1, 1936, August G. Mueller
- December 1, 1936 - December 1, 1938, August G. Mueller
- December 1, 1938 - December 1, 1940, James M. Tucker
- December 1, 1940 - July 25, 1942, James M. Tucker
- July 25, 1942 - December 1, 1942, Maurice G. Robinson
- December 1, 1942 - December 1, 1944, Rue J. Alexander
- December 1, 1944 - December 1, 1946, Rue J. Alexander
- December 2, 1946 - December 1, 1948, Thomas E. Bath, Jr.
- December 1, 1948 - December 1, 1950, Charles F. Fleming
- December 1, 1950 - December 1, 1952, Leland L. Smith
- December 1, 1952 - December 1, 1954, Crawford F. Parker
- December 1, 1954 - December 1, 1956, Crawford F. Parker
- December 1, 1956 - December 1, 1958, Frank A. Lenning
- December 1, 1958 - December 1, 1960, John R. Walsh
- December 1, 1960 - December 1, 1962, Charles O. Hendricks
- December 1, 1962 - December 1, 1964, Charles O. Hendricks
- December 1, 1964 - December 1, 1966, John D. Bottorff
- December 1, 1966 - December 1, 1968, Edgar D. Whitcomb
- December 1, 1968 - December 1, 1970, William N. Salin
- December 1, 1970 - December 1, 1972, Larry A. Conrad
- December 1, 1972 - December 1, 1974, Larry A. Conrad
- December 1, 1974 - December 1, 1978, Larry A. Conrad
- December 1, 1978 - December 1, 1982, Edwin J. Simcox
- December 1, 1982 - December 1, 1986, Edwin J. Simcox
- December 1, 1986 - January 9, 1989, Birch Evans Bayh III
- January 9, 1989 - December 1, 1994, Joseph H. Hogsett
- December 1, 1994 - December 1, 2002, Sue Ann Gilroy
- December 1, 2002 - December 1, 2006, Todd Rokita
- December 1, 2006 - January 6, 2011, Todd Rokita
- January 6, 2011 - February 4, 2012, Charlie White
- February 4, 2012 - March 16, 2012, Jerry Bonnet (Interim)
- March 16, 2012 - March 16, 2021, Connie Lawson
- March 16, 2021 - December 31, 2022, Holli Sullivan
- December 31, 2022 - Present, Diego Morales