Ngwatsau ni kijiji katika Barolong, Wilaya ya Southern huko nchini Botswana. Idadi ya wakazi wa kijijini hapa ilikuwa 393 kulingana na matokeo ya sensa ya mwaka wa 2011. 2011 Census Alphabetical Index of Districts Archived 25 Mei 2013 at the Wayback Machine. Central Statistics Office ya Botswana 2011 Census Alphabetical Index of Villages Central Statistics Office ya Botswana 2011 Census Alphabetical Index of Localities Archived 23 Septemba 2015 at the Wayback Machine. Central Statistics Office ya Botswana Vijisehemu vya Botswana Wilaya za Botswana Vijiwilaya vya Botswana Central Statistics Office ya Botswana Archived 2 Machi 2008 at the Wayback Machine. Kigezo:Wilaya ya Southern (Botswana)