Logooli (also written Lulogooli, Logoli, or Maragoli) is a Bantu language spoken by the Maragoli people of western Kenya. The Maragoli are the second-largest ethnic group of the Luhya nation, numbering around 2.1 million, or approximately 15% of the Luhya people. They are primarily concentrated in Vihiga County, where they occupy the largest portion of the county.

Logooli carries the ISO 639-3 code rag and is classified as a distinct language within the Greater Luyia cluster, though it forms part of the broader Luhya macrolanguage (ISO 639-3: luy). The Lulogooli dialect is not easily understood by all other Luhya subtribes , reflecting its position as a linguistically distinct variety within the dialect continuum. The language has benefited from Bible translation and has an established written tradition.

This collection brings together linguistic materials documenting Logooli, including audio recordings, grammatical descriptions, lexical data, and transcribed texts, supporting the preservation and academic study of this significant Luhya variety.