Roman Catholic Diocese of Thái Bình

{{Infobox diocese

| jurisdiction = Diocese

| border = Catholic

| name = Thái Bình

| latin = Dioecesis de Thai Binh

| local = Giáo phận Thái Bình

| image = Nha tho chinh toa Thai Binh 2.jpg

| image_size = 230px

| image_alt =

| caption = Thái Bình Cathedral

| coat = Huy_hiệu_Giám_mục_Đức_cha_Đaminh_Đặng_Văn_Cầu.png

| coat_size = 200px

| coat_alt =

| coat_caption = The coat of arms of Bishop Cầu

| flag =

| flag_size =

| flag_alt =

| country = Vietnam

| territory =

| province = Hà Nội

| metropolitan =

| archdeaconries =

| deaneries =

| subdivisions =

| coordinates =

| area_km2 = 2,221{{cite web |title=Diocese of Thái Bính stats |url=https://gcatholic.org/dioceses/diocese/thai0.htm?tab=stat |website=Gcatholic}}

| area_sqmi =

| area_footnotes =

| population = 3,255,178

| population_as_of = 2022

| catholics = 141,259{{cite web |title=Diocese of Thái Bính stats |url=https://gcatholic.org/dioceses/diocese/thai0.htm?tab=stat |website=Gcatholic}}

| catholics_percent = 4.3

| parishes = 135{{cite web |title=Diocese of Thái Bính stats |url=https://gcatholic.org/dioceses/diocese/thai0.htm?tab=stat |website=Gcatholic}}

| churches =

| congregations =

| schools =

| members =

| denomination = Catholic

| sui_iuris_church = Latin Church

| rite = Roman Rite

| established =

9 March 1936 - Established as Apostolic Vicariate
24 November 1960 - Promoted as Diocese

| cathedral = Cathedral of the Sacred Heart of Jesus

| cocathedral =

| patron = Sacred Heart of Jesus

| patron_title =

| priests =

| pope = {{Incumbent pope}}

| patriarch =

| major_archbishop =

| bishop = Dominic Đặng Văn Cầu

| bishop_title =

| metro_archbishop = Joseph Vũ Văn Thiên

| coadjutor =

| suffragans =

| auxiliary_bishops =

| apostolic_admin =

| vicar_general =

| episcopal_vicar =

| archdeacons =

| emeritus_bishops = Pierre Nguyên Văn Dê {{post-nominals|post-noms=SDB}}

| map =

| map_size =

| map_alt =

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| website = [http://giaophanthaibinh.org/ Website of the Diocese]

| footnotes =

}}

The diocese of Thai Binh ({{langx|la|Dioecesis de Thai Binh}}) is a Roman Catholic diocese in northern Vietnam. The bishop is Dominic Đặng Văn Cầu, since 2022, succeeding Bishop Pierre Nguyễn Văn Đệ.

The creation of the diocese in its present form was declared on November 24, 1960.

The diocese covers an area of 2,200 km², and is a suffragan diocese of the Archdiocese of Hanoi.

By 2004, the diocese of Thai Binh had about 116,399 believers (4.1% of the population), 42 priests and 64 parishes.[http://www.catholic-hierarchy.org/diocese/dthai.html Catholic Hierarchy Directory]

Sacred Heart Cathedral in Thai Binh town has been assigned as the Cathedral of the diocese.[http://www.gcatholic.org/churches/data/cathVN.htm#chk GCatholic.org]

In May, 2008, the authorities returned the two-building compound of build in 1936 My Duc seminary to the diocese. The seminary, which now bears the name of the Sacred Heart, provides education for 33 Roman Catholic students."After 31 years Thai Binh seminary to reopen", Asia News, July 2008.