| Mrs Justice May | |
| Office: | Justice of the High Court |
| Predecessor: | Sir Robert Akenhead |
| Birth Date: | 21 March 1961 |
| Nationality: | British |
| Alma Mater: | Wadham College, Oxford |
| Honorific Suffix: | DBE |
| Honorific Prefix: | The Honourable |
| Termstart: | 2015 |
Dame Juliet Mary May (born 21 March 1961), styled The Hon. Mrs Justice May, is a judge of the High Court of England and Wales.
May was educated at Wadham College, Oxford and called to the bar at Inner Temple in 1988. She was appointed Queen's Counsel and a Circuit Judge in 2008. She has been a judge of the King's Bench Division since 2015.