Elsy is a name. Notable people with this name include:
Given name Elsy Steinberg, birth name of Elaine Stewart (1930–2011), American actress and model Elsy Borders (1905–1971), English activist Elsy Jacobs (1933–1998), Luxembourgish road bicycle racer Elsy Rivas (born 1949), Colombian sprinter Elsy del Pilar Cuello (born 1959), Colombian judge
Surname Hannah Elsy (born 1986), British rower