Calcium is a chemical element with symbol Ca and atomic number 20.
Calcium may also refer to:
Calcium, New York, a census-designated place in Jefferson County, New York Calcium, Queensland, a locality in the City of Townsville, Australia "Calcium", a song on the album Accelerator by The Future Sound of London "Calcium", a song on the album DeadBoy by Bones "Calcium", a song on the album E by Ecco2k
See also
Calcium in biology, for the role of calcium in biology and nutrition Calcium supplement, for the medical uses of calcium Isotopes of calcium Ca (disambiguation)