According to the website "Meaning-of-names": Stanley Meaning: one who came from Stanley (stony meadow), in UK; dweller at a rocky meadow
There is no specific biblical meaning associated with the name Stanley. The name Stanley is of Old English origin, meaning "stone clearing" or "stony clearing."
The name Stacy has no meaning in Hebrew. Only Hebrew names have meaning in Hebrew. The name Stacy comes from the Latinized form of the Greek name Αναστασιος (Anastasios) which means "resurrection".
The Stanley Cup is probably named after the Stanley family who were (and still are) the Earls of Derby. The origins of the surname Stanley are Anglo-Saxon. Stan meaning Stone combined with Ley meaning Field. Stanley = Stone(y)Field. So the name was probably given originally to people who farmed poor land.
Taylor Stanley's birth name is Michelle Stanley.
Stanley Holden's birth name is Stanley Waller.
Stanley Clements's birth name is Klimowicz, Stanislaw.
Stanley Livingston's birth name is Stanley Bernard Livingston.
Red Stanley's birth name is Clifford Roscoe Stanley.
Stanley Cooley's birth name is Stanley Francis Cooley.
Stanley Kramer's birth name is Stanley Earl Kramer.
Stanley Karnow's birth name is Stanley Abram Karnow.
Stanley Jones's birth name is Edward Stanley Jones.