NAN Views 16 meanings found NAN most commonly appears in computing to indicate an undefined numeric value, but it also identifies an Indigenous political organization, a Fijian town, a financial fund, and a North American sports competition. Medical National Academy of Neuropsychology Miscellaneous Not A Name National Action Network Native Abstractions for Node Not a NaN Community North Avenue News News Agency of Nigeria Governmental Need A Notary National Alert Network Drug Safety No Action Necessary International Nishnawbe-Aski Nation Regional Nadi, Fiji Computing Not A Number Business Nuveen New York Dividend Advantage M Nanosonics Ltd Sports North American Nationals