This study contributes to the diversity of Vietnamese lichens with four new records for the country, including Nigrovothelium bullatum and Pyrenula confinis in urban areas and Leptogium phyllocarpum and Gabura fascicularis in central highlands. Amongst these, G. fascicularis is the first record of Arctomiaceae in Vietnam. The morphology, distribution, ecology and illustrations of all four species are provided. Keyword: Arctomiaceae, Collemataceae, Gabura, Ho Chi Minh City, new records, Pyrenulaceae, Trypetheliaceae, urban lichen.