Bishop Prosper Baltazar Lyimo is an Auxiliary Bishop of the archdiocese of Arusha in Northern Tanzania. He takes the second post in the Archdiocese as Auxiliary Bishop, he serves under the Ordinary Archbishop Isaac Amani. His Episcopal Ordination took place on the 15th of February 2015. Before, he was Chancellor and Judicial Vicar of the Archdiocese of Arusha. ​Bishop Prosper Baltazar Lyimo was born in Kilema in 1964 in Moshi Diocese and was ordained a Priest in July 4, 1997. He studed his Primary School studies in Maua and at Ngurdoto Primary School in Arusha. He completed his Secondary School studies at the Archdiocesan Minor Seminary Oldonyosambu. He studied Philosophy at Our Lady of Angels Major Seminary in Kibosho Moshi, and Theology at St. Paul’s Interdiocesan Seminary in Kipalapala -Tabora.​ Bishop Prosper Baltazar Lyimo studied in Rome Italy in 2007-2008, for a Licentiate (Masters) in Canon Law at the Pontifical Urbanian university and later to St. Paul College Canada in 2011-2012 for studies in Canon Law