PHD, PhD, or Ph.D. may refer to:

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  • Doctor of Philosophy (PhD), an academic qualification

Comics

  • PhD: Phantasy Degree, a Korean comic series
  • Piled Higher and Deeper or PhD Comics, a webcomic

Music

  • Ph.D. (band), a 1980s British group
  • Ph.D. (Ph.D. album)
  • Ph.D. (Art Farmer album)
  • "PHD", a song on the album Tweekend by the Crystal Method

Other uses

  • PHD finger, a protein sequence
  • Harry Clever Field (IATA and FAA LID: PHD), a US airport

See also

  • EGLN2 or PHD1, an enzyme
  • EGLN1 or PHD2, an enzyme
  • EGLN3 or PHD3, an enzyme
  • Naval Surface Warfare Center Port Hueneme (NSWC PHD), California, US