Feldspar (disambiguation)

Feldspar is a group of rock-forming minerals including
 * Alkali feldspar
 * Alkali feldspar granite
 * Potassium feldspar

Feldspar may also refer to
 * Community in Tay Valley, Ontario, Canada
 * USS Feldspar (IX-159), a concrete barge
 * Craig Feldspar, a character in the American television comedy series Malcolm in the Middle