The money will also help the countries improve animal health and plant health standards and improve their sanitary and phytosanitary (SPS) capacity.
Another €150,000 (CHF 164,000) will go to the internship programme sponsored by France and Ireland to assist permanent missions of developing countries in Geneva.
Patricia O’Brien, Ireland’s WTO Ambassador, said: "Ireland is committed to helping developing countries - especially least-developed countries - increase their participation in global trade.
“The overall objective of our donations is to help eradicate poverty, in line with the 2030 Agenda for Sustainable Development.”
Ireland's SPS contribution has gone to the Standards and Trade Development Facility (STDF), a partnership to help developing and least-developed countries (LDCs) access agricultural markets.
Roberto Azevêdo, WTO director-general, said: “This latest donation from Ireland is important in ensuring that the global trading system supports development - and helps to improve capacity of the WTO's poorest members.”
Ireland donated €350,000 last year including €50,000 to help the least-developed countries (LDCs) attend the tenth WTO Ministerial Conference in December 2015 in Nairobi, Kenya.
Since 2002, Ireland has donated almost CHF 12 million to various WTO trust funds.