Agriculture is a significant user of water resources in the OECD, accounting for around 25 percent of the total water use. There is strong evidence for a major contribution from agriculture to diffuse water pollution problems such as nutrient and pesticide pollution. Indicators that measure the activities and pressures from agriculture and how it affects water use and water quantity are important tools when assessing integration of environmental concerns in sector policies. In many national reports from OECD countries several indicators describing aspects of agriculture-water issues can be found and an exhaustive overview of all the used indicators will be an enormous task. The previous work of OECD and other studies in relation to agri-environmental indicators already contain much information on the use of these indicators. The main goal of the this paper is to add to this process with an overview that highlights some of the commonalties, differences and challenges in developing these indicators. The overview is limited to discuss indicators on agricultural water use, primarily irrigation, and indicators on nutrients, nitrogen and phosphorus, in relation to water quality. The overview is based on a good knowledge on use of indicators on agricultural water use and water quality issues in Europe, supplemented with review of several reports on agriculture and water issues, state of water and national state of the environment reports from other OECD countries. Examples of indicators used to report on agri-water aspects have been selected to illustrate the current state of the art and potential implications for the future work on the proposed OECD agri-water indicators are discussed.