Gillen
- Aidan Gillen
- Ann Gillen
- Brian Gillen
- Cathy Gillen Thacker
- Charles P. Gillen
- Dolores Gillen
- Francis James Gillen
- Gerard Gillen
- Gillan (disambiguation)
- Gillen Wood
- Gillen, Isle of Skye
- Gillen, Northern Territory
- Gwen Gillen
- Kieron Gillen
- Laura Gillen
- Mary A. Gillen
- Michael J. Gillen
- Pete Gillen
- Peter Paul Gillen
- Ray Gillen
- Shelley Gillen
- Simon Gillen