Monchy may refer to:
Places Monchy, Saint Lucia, a town in Saint Lucia Monchy, Saskatchewan, a former settlement in Saskatchewan, Canada
France Monchy-au-Bois, a commune in the Pas-de-Calais department Monchy-Breton, a commune in the Pas-de-Calais department Monchy-Cayeux, a commune in the Pas-de-Calais department Monchy-Humières, a commune in the Oise department Monchy-Lagache, a commune in the Somme department Monchy-le-Preux, a commune in the Pas-de-Calais department Monchy-le-Preux (hamlet), a hamlet in the Seine-Maritime department Monchy-Saint-Éloi, a commune in the Oise department Monchy-sur-Eu, a commune in the Seine-Maritime department
Other uses Monchy & Alexandra, a Dominican bachata musical group, active 1998–2008