ACH (onye mgba) , onye mgba America Albert C. Hardie, Jr (amụrụ n'afọ otu puku narị iteghete iri asatọ na asaa)
Ach., nchịkọta nke onye edemede taxonomic maka Erik Acharius (bido n'afọ otu puku narị asaa iri ise na asaa rue otu puku narị asatọ iri na iteghete) , onye ọkà mmụta ihe ọkụkụ nke Sweden
Aach (toponymy), okwu eji mara "osimiri" na German hydronymy
Ach (Ammer) , isi iyi nke Ammer, Bavaria, Germany
Ach (Blau) , isi iyi nke Blau, Baden-Württemberg, Germany
Bregenzer Ach, nke dị n'akụkụ ọdọ mmiri Constance, Austria
Dornbirner Ach, nke dị n'akụkụ ọdọ mmiri Constance, Austria
Friedberger Ach, isi iyi nke Lech, Bavaria, Germany