Roman Catholic Diocese of Mazatlán

{{Short description|Roman Catholic diocese in Mexico}}

{{Infobox diocese

| jurisdiction = Diocese

| name = Mazatlán

| latin = Dioecesis Mazatlanensis

| local = Diócesis de Mazatlán

| image = Mazatlan Cathedral.jpg

| image_size = frameless

| image_alt =

| caption = Catedral Basílica de la Inmaculada Concepción

| country = Mexico

| metropolitan = Mazatlán

| territory =

| province = Province of Durango

| coordinates = {{coord|23.2010|-106.4219|type:landmark_region:MX|display=inline,title}}

| area_sqmi = 7,379

| population = 765,248

| population_as_of = 2006

| catholics = 711,691

| catholics_percent = 93

| parishes = 40

| churches =

| congregations =

| schools =

| members =

| denomination = Roman Catholic

| rite = Roman Rite

| established = 22 November 1958 ({{age|1958|11|22}} years ago)

| cathedral = Cathedral Basilica of the Immaculate Conception

| cocathedral =

| patron = Immaculate Conception
Saint Peter
Saint Paul

| priests =

| pope = {{Incumbent pope}}

| bishop = Mario Espinosa Contreras

| metro_archbishop =

| coadjutor =

| auxiliary_bishops =

| vicar_general = Jaime Aguilar Martínez

| emeritus_bishops =

| map = Roman Catholic Diocese of Mazatlan in Mexico.jpg

| map_alt =

| map_caption =

| website = https://m.facebook.com/diocesismzt/

| footnotes =

}}

The Roman Catholic Diocese of Mazatlán ({{langx|la|Dioecesis Mazatlanensis}}) is a suffragan diocese of the Archdiocese of Durango. It was erected in 1958 and, along with the archdiocese, lost territory in 1968 to form the Territorial Prelature of El Salto.