'''Gillis''' or '''Gilliss''' may refer to:
==People and fictional characters== * Gillis (given name), a list of people * Gillis (surname), a list of people and fictional characters named Gillis or Gilliss
==Places== * Gillis, Louisiana, United States, an unincorporated community and census-designated place * Gillis Range, a mountain range in Nevada, United States * Gilliss Seamount, a seamount in the Atlantic Ocean off the coast of Massachusetts, United States
==Ships== * {{USS|Gillis}} (1919-1945), a United States Navy destroyer * {{USS|James M. Gilliss|AMCU-13}}, a minesweeper * {{USNS|James M. Gilliss|T-AGOR-4}}, an oceanographic research ship
==Other uses== * Gillis Centre, a complex of historical buildings in Edinburgh, Scotland * Gillis College a former seminary in Edinburgh, Scotland
==See also== *Gilli (disambiguation) *Gillies
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