The paper analyzes the actual status of implementation of circular economy in the Romania water and wastewater sector and identifies the future opportunities and challenges. The Romanian water sector has a very low level of implementation of circular economy principles, and they will face major challenges in the future due to this. There is a national strategy on circular economy that also covers the water and wastewater sector and the Regulator started to analyze the water operator also from circular economy point of view. In this context, the water sector will have to develop a strategy in the future to comply will all these legal and regulatory requirements