This article reviews the use of constructed wetland (CW) systems for treating various types of wastewater, including gray water, runoff, domestic, and industrial effluents, with the aim of reusing them. The study selected and analyzed 81 articles published in the last six years, focusing on the quality of the treated effluents in relation to reuse regulations in different countries. The review highlights that CWs can effectively treat gray water and runoff, as well as domestic and industrial effluents, achieving effluent qualities suitable for reuse. However, challenges remain in optimizing CWs to improve the removal of pathogens and emerging contaminants. The integration of CWs with conventional and advanced technologies is proposed as a solution to enhance the removal of these pollutants. The article concludes that studies on CWs for effluent reuse are evolving, with experiments at different scales, and that CWs offer economic, environmentally friendly, and efficient solutions to address water scarcity issues caused by climate change and increasing reuse regulations.This article reviews the use of constructed wetland (CW) systems for treating various types of wastewater, including gray water, runoff, domestic, and industrial effluents, with the aim of reusing them. The study selected and analyzed 81 articles published in the last six years, focusing on the quality of the treated effluents in relation to reuse regulations in different countries. The review highlights that CWs can effectively treat gray water and runoff, as well as domestic and industrial effluents, achieving effluent qualities suitable for reuse. However, challenges remain in optimizing CWs to improve the removal of pathogens and emerging contaminants. The integration of CWs with conventional and advanced technologies is proposed as a solution to enhance the removal of these pollutants. The article concludes that studies on CWs for effluent reuse are evolving, with experiments at different scales, and that CWs offer economic, environmentally friendly, and efficient solutions to address water scarcity issues caused by climate change and increasing reuse regulations.