Spieker is a surname. Notable people with the name include:
Bonno Spieker (1935–2017), Dutch politician Cole Spieker (born 1996), American football wide receiver Franz-Josef Spieker (1933–1978), German filmmaker Irene Spieker, American world record holder in the women's pole vault Theodor Spieker (1823–1913), German mathematician and teacher
See also Spieker center, special point associated with a plane triangle Spieker circle, named after German geometer Theodor Spieker Spieker Aquatics Center, 2,500-capacity stadium in Los Angeles, California