Possible Nova in Galaxy M81 - AT2023bnl (A.R. 09 56 08.93 Dec. +69 02 44.3 - m.v. +18.4) discovered by Flavio Castellani, Raffaele Belligoli and Vittorio Andreoli with the 16" telescope of Monte Baldo Observatory on behalf of Italian Supernovae Search Project (ISSP) - (TNS) - (Atel 15896) - (Atel 15898) - (Atel 15912).