Inykhnum (also read as Khnum-Iny) was an ancient Egyptian high-ranking official who worked and lived during the transition time between Second and Third Dynasty of Egypt.

[2] Ilona Regulski and Peter Kaplony are convinced that Inykhnum held his office some time between the end of Khasekhemwy's and the beginning of Sekhemkhet's reigns.

Earlier assumptions made by Wolfgang Helck, who dated Inykhnum's ink inscriptions to the time of Nynetjer (3rd ruler of 2nd dynasty), are questioned by Ilona Regulski.

She points to comparisons between the ink inscriptions from Abydos and findings from Saqqara with contemporary cursive writings from the 2nd and early 3rd dynasties.

First, Regulski remarks that the "17th time of the cattle count" appearing alongside the official's name, is a way of writing which was not common until the reign of Djoser.

Not only do they show the development of the hieratic writing, but also they mention a special building alongside Inykhnum's name: it is a Ka-house, the forerunner of the later mortuary temple.