| Term | Definition / Meaning / Stand for |
| AB |
Apostolic Blessing |
| ABD |
Abrahamic Day |
| ABU |
Aligarh Muslim University (Islamic institution) |
| ACC |
African Christian Church |
| ACIM |
A Course in Miracles |
| ACM |
Association of Christian Ministers |
| ACTS |
Acts of the Apostles |
| AD |
Anno Domini (Year of Our Lord) |
| AG |
Assemblies of God |
| AGM |
Annual General Meeting (religious institution) |
| AIC |
African Independent Churches |
| AL |
Anointed Leaders (Christian context) |
| ALM |
All Love Ministries |
| ANZAC |
Australian and New Zealand Army Corps (with Christian and patriotic elements) |
| AP |
Apostle |
| ARK |
Ark of the Covenant |
| ASMI |
Apostolic Sisters of Mary Immaculate |
| AT |
Anno Domini (AD) |
| AusBR |
Australian Biblical Review |
| B.C. |
Before Christ |
| B.C.E. |
Before Common Era |
| B.C.E.S. |
Biblical Christian Educational Society |
| B.H.C. |
Bhakti Yoga in Hinduism |
| B.P. |
Benedictine Priest |
| BBS |
Bible Broadcasting Services |
| BCE |
Before Common Era |
| BJP |
Bharatiya Janata Party (Hindu nationalist party) |
| BLC |
Benedictine Life Community |
| BMS |
Baptist Missionary Society |
| BMT |
Bible Memory Training |
| BRI |
Bible Research Institute |
| BSA |
Bible Society of America |
| BSA |
Biblical Scholars Association |
| BUDD. |
Buddhist |
| BVM |
Blessed Virgin Mary |
| C.E. |
Common Era |
| C.O. |
Church of (denomination) |
| CBQ |
Catholic Biblical Quarterly |
| CC |
Catholic Church |
| CCC |
Catechism of the Catholic Church |
| CFA |
Church Fellowship Association |
| CIN |
Church in Nations |
| CIO |
Church in the Outdoors |
| CIR |
Center for Interfaith Relations |
| CMA |
Christian and Missionary Alliance |
| CNEWA |
Catholic Near East Welfare Association |
| CSP |
Congregation of the Sacred Priesthood |
| CT |
Christian Tradition |
| CV |
Christian Voice |
| CWS |
Church World Service |
| Cl. |
Clergy |
| D.D. |
Doctor of Divinity |
| DCC |
Divine Command Church |
| DCD |
Divine Creation Doctrine |
| DIC |
Divine Inspiration Church |
| DLC |
Divine Life Church |
| DOV |
Day of Victory |
| DP |
Divine Providence |
| DPC |
Divine Path Church |
| DPN |
Divine Prayer Network |
| DPS |
Divine Purpose Society |
| DRC |
Divine Redeemer Church |
| DSC |
Divine Study Center |
| DSFS |
Daughters of Saint Francis de Sales |
| DWC |
Divine Word Congregation |
| DYM |
Divine Youth Movement |
| DYR |
Diocesan Youth Retreat |
| ECC |
Evangelical Covenant Church |
| ECUSA |
Episcopal Church in the United States of America |
| ED |
Episcopalian Diocese |