Like the Amorites, the Hittites were one of the nations conquered by the Israelites. At their peak in 1500 BCE, the Hittites' kingdom stretched from Asia Minor to southern Syria. There are many parallels between the Egyptian and Hittite cultures: Both kingdoms centered their cities along a dominant river (the Nile and Euphrates, respectively), both believed their king to be an emissary of God, and both practiced feudalistic systems which included slavery. There are several interactions between the Hittites and the Israelites in the Torah, including when Abraham purchases a cave from Machpelah, a Hittite as well as when Esau takes a Hittite wife.
Sources: Bridger, David. Ed. The New Jewish Encyclopedia. NY: Behrman House, Inc. 1976.
Schreiber, Mordecai (ed.). The Shengold Jewish Encyclopedia. Shengold Books. 1998.
Telushkin, Joseph. Jewish Literacy. William Morrow and Company, Inc. 1991.