The name is derived from the Northwest Semitic root zbl, common in 2nd millennium BC Ugaritic texts as an epithet (title) of the god Baal, as well as in Phoenician and (frequently) in biblical Hebrew in personal names.
The text of the Torah gives two different etymologies for the name Zebulun, which textual scholars attribute to different sources - one to the Yahwist and the other to the Elohist; the first being that it derives from zebed, the word for gift, in reference to Leah's view that her gaining of six sons was a gift from God; the second being that it derives from yizbeleni, meaning honour, in reference to Leah's hope that Jacob would give her honour now that she had given birth to six sons. In Deuteronomy, however an allusion is made to a third potential etymology - that it may be connected with zibhe, literally meaning sacrifice, in reference to commercial activities of the tribe of Zebulun - a commercial agreement made at Mount Tabor between the tribe of Zebulun and a group of non-Israelites was referred to as zibhe-tzedek, literally meaning sacrifice to justice or sacrifice to Tzedek.
The Torah states that Zebulun had three sons - Sered, Elon, and Jahleel - each the eponymous founder of a clan. Beyond this, there is little other reference to Zebulun.
The Tomb of Zebulun is located in Sidon, Lebanon. In the past, towards the end of Iyyar, Jews from the most distant parts of Palestine would make a pilgrimage to this tomb.