A three day Regional Learning event on ‘Scaling up Sanitation and Hygiene in the East Asia and Pacific Region’ was held in Bangkok in December 2013. This workshop was jointly organized by UNICEF, WSP, WaterAid and Plan International. Over 60 participants from more than 8 countries in the region (PNG, Timor Leste, Vietnam, Cambodia, Indonesia, Lao PDR, Myanmar, Philippines) participated in the event. This meeting builds on the previous learning and sharing of experience at meetings including EaSan III (East Asia Conference on Sanitation and Hygiene, Bali 2012).