This is the first volume, including the letters A and B, of a four-volume edition of the names of persons represented on inscriptions from the European provinces of the Roman Empire. The present work is based on A. Mocsy's Nomenclator provinciarum Europae Latinarum et Galliae Cisalpinae which it complements with a statistical and distributional analysis. Under each main lemma the individual forms, with references of their attestations, the origo of the name bearer (if known) and relevant literature are supplied. The frequency of well-attested names is illustrated by distributional maps. This Onomasticon will be an indispensable tool for historical, linguistic and onomastic research. The other volumes are available from Phoibos Verlag, Vienna. German and Latin text.