Jeffrey, Geoffrey, Jeff, or Geoff Davis may refer to:

Politics

• Jefferson Davis (1808–1889), President of the Confederate States of America
• Jeff Davis (Arkansas governor) (1862–1913), U.S. Senator and 20th Governor of Arkansas
• Jeffrey O. Davis, Wisconsin Court of Appeals judge
• Geoff Davis (born 1958), U.S. Congressman representing Kentucky's 4th district
• Geoff Davis (Australian politician) (born 1931), Tasmanian politician

Sports

• Jeff Davis (American football) (born 1960), professional NFL football player
• Jeff Davis (gymnast) (born 1954), British Olympic gymnast
• Jeff Davis (racing driver) (born 1959), American racing driver
• Jeff Davis (ski jumper) (born 1958), American ski jumper

Others

• Jeff Davis (horse) (fl. 1860s–1870s), owned by Ulysses S. Grant
• Jeff B. Davis (born 1973), American actor, comedian and singer
• Jeff Davis (writer) (born 1975), American television writer and producer
• Geoffrey Davis (doctor) (died 2008), Australian doctor

Places

• Jeff Davis County, Georgia
• Jeff Davis County, Texas