Mountforde Court is one of five street-names in Short Strand which have this first element. It seems like that Mountforde has some relationship with Seaforde, which is also found in street-names in this neighbourhood and is derived from Seaforde (House) near Loughinisland, Co. Down. The element mount is commonly used in names of big houses. However, there seems to be no record of Mountforde having been used as a house name either at Seaforde or in this locality in Ballymacarret.