Encyclopedias, Almanacs, Transcripts, and Maps
- Halakhah: Structure of Halakhah
- halide
- Halons
- Hamito-Semitic languages
- Hammerheads (Scopidae)
- Han Fei Zi
- Hanford Nuclear Reservation
- hanging valley
- Haoma
- Hardin, Dr. Garrett (1915 – ) American Environmentalist And Writer
- hardness of water
- harebell
- Hares and Rabbits (Leporidae)
- Harris, William Wade
- Harrison, Jane E.
- Hartland, E. Sidney
- Hartley, L.P.
- Harva, Uno
- Hashemite
- Hasidism: An Overview