Clancy

Clancy could refer to:
 * People
 * Clancy (Ensign), a female security officer aboard the USS Enterprise
 * Clancy (Admiral), a 24th century admiral
 * Clancy (Crewperson), a 23rd century member of the crew of Ransom Castle
 * Clancy (soldier), a Union Army soldier in the American Civil War
 * Esmeralda Clancy, an ensign aboard the USS Enterprise-D
 * Jacob Clancy, a 23rd century resident of Tarsus IV
 * Kirsten Clancy, a commander-in-chief of Starfleet Command
 * "Real" people
 * Lisa Clancy, editor of Starfleet Academy DS9 young adult novels
 * Tom Clancy, a 20th century novelist
 * Ships
 * USS Clancy, a 23rd century Miranda-class starship