| Hab. | (in the Bible) Habakkuk |
| Haematol. | haematology |
| Hag. | (in the Bible) Haggai |
| Hampsh. | Hampshire |
| Handbk. | handbook |
| Hants. | Hampshire |
| Heb. | Hebrew |
| Heb. | (in the Bible) Hebrews |
| Hebr. | (in the Bible) Hebrews |
| Hen. | Henry |
| Her. | heraldry |
| Herb. | herbalism |
| Heref. | Herefordshire |
| Hereford. | Herefordshire |
| Herefordsh. | Herefordshire |
| Hertfordsh. | Hertfordshire |
| Hierogl. | Hieroglyphic |
| hist. | historical |
| Hist. | history, historic(al) |
| Histol. | histology, histologic(al) |
| Hom. | homilies |
| Horol. | horology |
| Hort. | horticulture, horticultural |
| Hos. | (in the Bible) Hosea |
| Hosp. | hospital |
| Househ. | household |
| Housek. | housekeeping |
| Husb. | husbandry |
| Hydraul. | hydraulic |
| Hydrol. | hydrology, hydrological |
