Encyclopedias, Almanacs, Transcripts, and Maps
- Hydropower
- Hydrozoa (Hydroids)
- Hymenoptera (Sawflies, Ants, Bees, and Wasps)
- hypotenuse
- Hyracoidea
- I Am
- I?j?z
- Ib??iyya
- Iberian Religion
- Ibises and Spoonbills (Threskiornithidae)
- Ibn ?A??? All?h
- Ibn ?azm
- Ibn ?Ezra?, Avraham
- Ibn al-?Arab?
- Ibn al-F?ri?
- Ibn B?bawayhi
- Ibn B?jjah
- Ibn Daud, Avraham
- Ibn Gabirol, Shelomoh
- Ibn S?n?