The APM Siding was a 1.125-kilometre (0.7 mi) long private railway siding in the suburb of Alphington, Melbourne, Australia, that served the Australian Paper Manufacturers paper mill (later becoming the Amcor Fibre Packaging, before being closed in 2012). The siding branched from Fairfield station, on the Hurstbridge line, and ran south-east, passing through the intersection of Chandler Highway, Grange and Heidelberg Roads, and entering the factory.