Janetta is a given name. Notable people with the name include:
Janetta Rebold Benton, American art historian Janetta Douglas, née Smith, MBE, Papua New Guinean charity worker Janetta Gillespie (1876–1956), Scottish artist Janetta Johnson (born 1964), African-American transgender rights activist Janetta McStay CBE (1917–2012), New Zealand concert pianist and music professor Lavinia Janetta Horton de Serres Ryves (1797–1871), British woman claiming to be a member of the British royal family Ruth Janetta Temple (1892–1984), American physician in Los Angeles, California Janetta Vance (1855–1921), British archer
See also Bathyergus janetta or Namaqua dune mole-rat (Bathyergus janetta) Euphaedra janetta, the Janetta Themis forester butterfly Syntherata janetta, commonly known as the emperor moth Tagiades janetta spread-winged skipper butterfly Janet (disambiguation) Janette (disambiguation) Jannette Jeanetta (disambiguation) Jeanette (disambiguation) Jennata