Caluag is a Filipino surname of Tagalog origin. Notable people with the surname include:

  • Christopher Caluag (born 1988), Filipino American BMX racer and civil engineer who competes for the Philippines internationally
  • Daniel Caluag (born 1987), Filipino American BMX racer who competed for the Philippines in the BMX event of the 2012 Summer Olympics
  • Ed Caluag (born 1962), Filipino paranormal investigator and exorcist in supernatural/paranormal phenomena.
  • Tito Caluag (born 1958), Filipino priest, educator and author
  • Vilma Caluag (born 1972), Filipino politician and businesswoman who is currently serving as the 33rd Mayor of San Fernando, Pampanga since 2022