Abrest is a commune in the Allier department in the Auvergne-Rhône-Alpes region of central France. The commune is one of the 37 comm…Abrest is a commune in the Allier department in the Auvergne-Rhône-Alpes region of central France. The commune is one of the 37 communes in the urban area of Vichy and is also part of Vichy Auvergne countryside.