The 2015 Bolivian regional elections were held on 29 March 2015. Departmental and municipal authorities were elected by an electorate of approximately 6 million people.

Among the officials elected were:

• Governors of all nine departments
• Members of Departamental Legislative Assemblies in each department; 23 seats in these Assemblies will represent indigenous communities, and have been selected by traditional usos y costumbres in the weeks prior to the election
• Mayors and Council members in all 339 municipalities^[1]
• Provincial Subgovernors and Municipal Corregidors (executive authorities) in Beni
• Sectional Development Executives at the provincial level in Tarija
• The nine members of the Regional Assembly in the autonomous region of Gran Chaco^[2]

Altogether, 2,642 officials were elected.^[3] Almost every elected office, but not Mayor, included a simultaneously elected alternate of the same party.

Only the Movement towards Socialism was involved in all 339 municipal contests.^[4] Other parties participating in large numbers of contests are as follows:

Bolivia's ruling MAS party suffered some defeats and setbacks in the subnational elections compared to its performance in 2010 and its victory in the 2014 presidential election.^[7]