This dataset was moved to: https://doi.org/10.34725/DVN/SSIMNNKey informant interviews (KIIs) were conducted with the aim of understanding the structure of agricultural extension in Burundi. The interviews formed part of the Australian Centre for International Agricultural research (ACIAR) funded ‘Trees for Food Security’ project work package 3 activities- Reporting on different extension methods and their suitability for different contexts. A total of 12 key informants drawn from National extension directorate, Ministry of Agriculture and Livestock and Non-governmental Organizations (NGOs) were interviewed. The major thematic areas were: Extension services disseminated to farmers; Extension approaches; Community engagement; Capacity/ efficiency; Strengths and weaknesses of extension and Commercialization and marketing