| AQ | Additional qualifications |
| BDE | Bureau for Development of Education |
| BOSTES | Board of Studies, Teaching and Educational Standards |
| CBA | Computer-based assessments |
| CIS | Centre for Information Services |
| EC | European Commission |
| ECEC | Early childhood education and care |
| ECTS | European Credit Transfer and Accumulation System |
| ECTS | European Credits Transfer System |
| ESCS | Economic, social and cultural status |
| ESMS | Electronic Inspection Management System |
| EU | European Union |
| GDP | Gross domestic product |
| GDPR | General Data Protection Regulation |
| GPA | Grade point average |
| HDI | Human Development Index |
| ICCS | International Civic and Citizenship Education Study |
| ICT | Information and communication technology |
| ILO | International Labour Organization |
| IMSP | Individual Mandatory Student Plans |
| ISCED | International Standard Classification of Education |
| IT | Information technology |
| ITE | Initial teacher education |
| MAP | Measures of Academic Progress |
| NEA | National External Assessment |
| NGO | Non-governmental organisation |
| NSI | National Statistical Institute |
| OECD | Organisation for Economic Co-operation and Development |
| PIRLS | Progress in International Reading Literacy Study |
| PISA | OECD Programme for International Student Assessment |
| PPP | Purchasing power parity |
| RED | Regional department of education |
| SES | State Educational Standard |
| SICI | Standing International Conference of Inspectorates |
| SPU | Strategic Planning Unit |
| STEM | Science, technology, engineering and mathematics |
| SWOT | Strengths, weaknesses, opportunities and threats |
| TALIS | OECD Teaching and Learning International Survey |
| TIMSS | Trends in International Mathematics and Science Study |
| UNESCO | United Nations Educational, Scientific and Cultural Organization |
| UNICEF | United Nations Children's Fund |
| VET | Vocational education and training |
| WSE | Whole School Evaluation |
OECD Reviews of Evaluation and Assessment in Education: Bulgaria