To provide a sub regional assessment of cholera in South and Southeast Asia, we collated published and unpublished data from existing surveillance systems from Bangladesh, Cambodia, India, Malaysia, Nepal, Pakistan, Philippines, Thailand and Vietnam. METHODS: Data from existing country surveillance systems on diarrhea, acute watery diarrhea, suspected cholera and or confirmed cholera in nine selected Asian countries Bangladesh, Cambodia, India, Malaysia, Nepal, Pakistan, Philippines, Thailand and Vietnam from 2011 to 2015 or 2016, when available were collated. ...