Guaranty Bank may refer to:
- Guaranty Bank (Texas), a defunct Austin, Texasâ€"based bank serving Texas and California (1988â€"2009)
- Guaranty Bank (Wisconsin), a Milwaukee, Wisconsinâ€"based bank serving Midwest states and Georgia, established 1923
- First Guaranty Bank, a Hammond, Louisianaâ€"based bank, established 1934
- Guaranty Bank & Trust, a Mount Pleasant, Texasâ€"based bank, established 1913
- Guaranty Bank and Trust Company, a Denver, Coloradoâ€"based bank, established 1955
- Guaranty Bank and Trust Company (Dallas, Texas), a defunct Dallas, Texasâ€"based bank (1920â€"1988)
