Groundwater is an important resource for livelihoods and food security of billions of people, especially in developing countries of Asia. Despite the significance of groundwater for sustainable development in Asia, it has not always been properly managed, resulting in depletion of the resource. Climate change impacts may add to existing pressure on groundwater resources by impeding recharge capacities in some areas and filling eventual gaps in surface water availability caused by increased variability of precipitation. This document provides an overview of groundwater issues in Asia and examines the potential and negative effects of climate change. Also discussed are adaptation options.