Luísa Isabella Nolasco da Silva Leong Lok-Yau (Chinese: 梁洛施, born 23 June 1988), better known as Isabella Leong Lok-Sze, is a Macanese-born, Hong Kong-based actress and former singer.

梁洛施 , Luisa Isabella Nolasco da Silva , Isabella Leung , Lok-si Leung , Luoshi Liang , 梁乐瑶 , Isabella Leong Lok-Sze , Leong Lok-Sze , ایزابلا لیانگ لاک سی