Infobox pharaoh
| name = Djoser
| image = Djoser statue.jpg
| caption = Limestone Ka statue of Djoser from his pyramid serdab
| reign = 19 or 28 years ca. ca. 2686–2648 BC, 2687–2668 BC, 2668–2649 BC, 2667–2648 BC, or 2630–2611 BC
| predecessor = Khasekhemwy (most likely) or Nebka
| successor = Sekhemkhet (most likely) or Sanakhte
| alt_name = Netjerikhet, Tosorthros, Sesorthos
| prenomen = Nisut-Bity-Nebty-Netjerikhetnebu nsw.t-bty-nb.ty nṯrj-ẖt-nbw King of Upper and Lower Egypt, he of the two ladies, with a divine body of gold M23:t-L2:t-G16-R8-D21:F32:S12
| prenomen_hiero =
| nomen = Nub-Hor Nbw-Ḥr Golden Horus G8
| nomen_hiero =
| horus = Hor-Netjerikhet Hr-nṯrj.ẖt Horus, divine of body
| horus_hiero = R8-D21:F32
| nebty = Netjerikhet Nb.tj Nṯrj-ẖt The two Ladies, divine of body nTr r:X
| nebty_hiero =
| golden = Nub-Ra Nbw-Rˁ Golden one of Ra N5:S12 Abydos King List ....djeser-sa ...-ḏsr-s3 ...sublime protector HASH-D45-V17 Saqqara Tablet Djoser ḏsr The sublime D45:D21 Turin King List Djoserit Ḏsr-jt D45:r-M17-X1-G7-G7
| golden_hiero =
| death_date = c. 2649 BC or c. 2611 BC
| spouse = Hetephernebti
| children = Inetkawes, maybe Sekhemkhet ?
| dynasty = 3rd Dynasty
| father = Khasekhemwy
| mother = Nimaethap
| burial = Step pyramid at Saqqara
| monuments =
Djoser (also read as Djeser and Zoser) was an ancient Egyptian pharaoh of the 3rd Dynasty during the Old Kingdom, and was the founder of that epoch. He is also known by his Hellenized names Tosorthros (from Manetho) and Sesorthos (from Eusebius). He was the son of King Khasekhemwy and Queen Nimaathap, but whether he was also the direct successor to their throne is unclear. Most Ramesside king lists identify a king named Nebka as preceding him, but there are difficulties in connecting that name with contemporary Horus names, so some Egyptologists question the received throne sequence. Djoser is known for his step pyramid, which is the earliest colossal stone building in ancient Egypt.
The painted limestone statue of Djoser, now in the Egyptian Museum in Cairo, is the oldest known life-sized Egyptian statue.