• Memorandum of Understanding between the Statistical Committee of the Republic of Armenia and the UNICEF Armenia Country Office to Execute the Project "Multiple Indicator Cluster Survey (MICS) Armenia 2026" (signed 05.12.2025)
• UN Women Partner Agreement between the UN Women and Statistical Committee of the Republic of Armenia (signed 18.07.2023).
• UN Women Partner Agreement between the UN Women and Statistical Committee of the Republic of Armenia (signed 29.01.2021).
• Letter of Intent between the Ministry of Nature Protection of the Republic of Armenia and the National Statistical Service of the Republic of Armenia on the one part and the European Environment Agency on the other part (signed 13.09.2017).
• Letter Agreement “Republic of Armenia ECASTAT Grant No.TFOA4543 Implementation of the National Strategy Program for Strengthening of the National Statistical System” between the Republic of Armenia and International Bank for Reconstruction and Development (World Bank), (signed 28.04.2017).
• Letter of Intent between the Ministry of Nature Protection of the Republic of Armenia and the National Statistical Service of the Republic of Armenia on the one part and the European Environment Agency on the other part (signed 30.06.2014).
• Memorandum of Understanding on cooperation between the National Statistical Service of the Republic of Armenia and the Statistical Centre of the Islamic Republic of Iran (signed 06.12.2013).
• Memorandum of Understanding on statistical cooperation between the National Statistical Service of the Republic of Armenia, Ministry of Energy and Natural Resources of the Republic of Armenia and the INOGATE Technical Secretariat (signed 02.07.2013).
• Memorandum of Understanding between the NSS RA and Interstate Statistical Committee of CIS on Implementation of the Program of International Comparisons of GDP in the CIS region within the Global Round of the Program of International Comparison for 2011 (signed 09.04.2010).
• Memorandum of Understanding between the National Statistical Service of Armenia, Interstate Statistical Committee of CIS, State Committee on Statistics of Russian Federation on implementation of the international comparisons program in the CIS region (signed 17.12.2003).
• Memorandum on Extension of co-operation between the National Statistical Services of Azerbaijan, Armenia and Georgia (signed 26.05.2000).Memorandum on further deepening of co-operation between the National Statistical Services of Azerbaijan, Armenia and Georgia (signed 15.10.2002).
• Memorandum of Understanding between the National Statistical Services of Armenia, Azerbaijan and Georgia (signed 02.10.1998).
• Agreement on the exchange of statistical data on external trade with Eurostat (signed 23.02.1999, ratified 20.09.1999).
• Agreements on international statistical co-operation:

Kyrgyzstan (signed 21.04.97, ratified 07.05.1998),
Tajikistan (signed 10.03.98, ratified 20.09.1999),
Russia (signed 14.05.99, ratified 20.09.1999),
Bulgaria (signed 01.12.99, ratified 08.03.2000),
Belarus (signed 20.09.00, ratified 28.12.2000).

• Agreement between Department of Statistics of Armenia and Statistics Sweden (1998).
• Agreement between Department of Statistics of Armenia, Department of Statistics of Georgia, Statistical Committee of Azerbaijan and statistics Sweden (1998)