- hartA male deer, especially the male of the red deer after his fifth year.
- HartfordAn eastern suburb of Huntingdon, Huntingdonshire district, Cambridgeshire (OS grid ref TL2573).
- HortonA town and locality in the Bundaberg Region, Queensland, Australia.
- hartleyA unit of information (symbol Hart) representing the information content of an event if the probability of that event occurring is 1/10. It is therefore equal to the information contained in one decimal digit
- HartlandA village and civil parish in Torridge district, Devon, England (OS grid ref SS2524).
- HurstonA surname from Old English.
- HartshorneA village and civil parish in South Derbyshire district, Derbyshire, England (OS grid ref SK320213).
- HartfieldA village and civil parish in Wealden district, East Sussex, England (OS grid ref TQ4735).
- HartonA village and civil parish (without a council) in North Yorkshire, previously in Ryedale district (OS grid ref SE7062).
- HeorotA legendary mead hall ruled over by Hrothgar, as described in the poem Beowulf.
- HarthillA village and civil parish in Cheshire West and Chester district, Cheshire, England (OS grid ref SJ5055).
- HartburnA suburb of Stockton-on-Tees, County Durham, England (OS grid ref NZ4218).