| CMCoord | Civil–military coordination |
| CPAS | Comprehensive Performance Assessment System |
| CRSV | Conflict-related sexual violence |
| CSA | Chief Security Adviser |
| CSO | Civil society organization |
| DoA | Delegation of authority |
| DDR | Disarmament, demobilization and reintegration |
| DO | Designated Official |
| DOS | UN Department of Operational Support |
| DPO | UN Department of Peace Operations |
| DPPA | UN Department of Political and Peacebuilding Affairs |
| DSRSG | Deputy Special Representative of the UN Secretary-General |
| EOD | Explosive ordnance disposal |
| ERW | Explosive remnants of war |
| FC | Force Commander |
| FPU | Formed police unit |
| HC | Humanitarian Coordinator |
| HIPPO | Independent High-level Panel on Peace Operations |
| HRDDP | Human Rights Due Diligence Policy |
| HoM | Head of Mission |
| IAP | Integrated assessment and planning |
| IDP | Internally displaced person |
| IED | Improvised explosive device |
| IHL | International humanitarian law |
| IMF | International Monetary Fund |
| IPO | International police officer |
| ISF | Integrated Strategic Framework |
| ISR | Intelligence, surveillance and reconnaissance |
| JMAC | Joint Mission Analysis Centre |
| JOC | Joint Operations Centre |
| MLT | Mission Leadership Team |
| MSU | Mediation Support Unit |
| NGO | Non-governmental organization |
| NSAG | Non-state armed group |
| OCHA | UN Office for the Coordination of Humanitarian Affairs |
| OHCHR | Office of the UN High Commissioner for Human Rights |
| OIOS | UN Office of Internal Oversight Services |
| OROLSI | UN DPO Office of Rule of Law and Security Institutions |
| PBSO | UN Peacebuilding Support Office |
| PC | Police Commissioner |
| PCC | Police-contributing country |
| POC | Protection of civilians |
| PSA | Principal Security Adviser |
| RC | UN Resident Coordinator |
| ROE | Rules of engagement |
| SDG | Sustainable Development Goal |
| SEA | Sexual exploitation and abuse |
| SGBV | Sexual and gender-based violence |
| SGF | Strategic Guidance Framework for International Policing |
| SMS | Security management system |
| SMT | Security Management Team |
| SOFA | Status of forces agreement |
| SOMA | Status of mission agreement |
| SRA | Security risk assessment |
| SRM | Security risk management |
| SRSG | Special Representative of the UN Secretary-General |
| SSR | Security sector reform |
| TCC | Troop-contributing country |
| TOC | Transnational organized crime |
| UNCT | UN Country Team |
| UNDP | UN Development Programme |
| UNHCR | UN High Commissioner for Refugees |
| UNHQ | UN Headquarters |
| UNICEF | UN Children’s Fund |
| UNPOL | UN Police |
| USG | Under-Secretary-General |
| UNDSS | UN Department of Safety and Security |
| WFP | World Food Programme |
| WPS | Women, Peace and Security |
| YPS | Youth, Peace and Security |