This document is a bibliography of the languages of the Rift Valley Area of Tanzania, which is home to dozens of distinctive ethnic groups and languages. Uniquely, it is the meeting place of languages from three of the largest language families in Africa—Nilo-Saharan, Niger-Congo, and Afro-Asiatic—as well as Sandawe, a language with possible affinity with the so-called 'Khoisan' group, and Hadza, a language isolate, which means that it is not known to be related to any other languages currently spoken. The Rift Valley Bibliography is compiled by members of the Rift Valley Network and is hosted on the network website at the Rift Valley Bibliography page. This is a text version of the bibliography, but other formats of the bibliography are available for those who use reference manager software (e.g. Zotero, EndNote, or Mendeley), and a Zotero Group is used to make additions and changes to the bibliography. A PDF Collection of selected entries is available for members of the Rift Valley Network only. For comments or questions related to this bibliography, please send an email to rvn@listserv.linguistlist.org.