In memory of Igor Dmitrievich Ado

We give a translation from Russian into English of the article "In memory of Igor Dmitrievich Ado" written by A.V. Dorodnov and I.I. Sakhaev and published in Izv.\ Vyssh.\ Uchebn.\ Zaved.\ Mat.\ no. 8, (1984), 87--88. It is an orbituary for I. D. Ado. A translation might be useful in general, and in particular for a possible Wikipedia entry of Ado's life in English. In the references we list all known \(12\) publications of I.D. Ado, taken from the article and the MATHSCINET of the AMS. The original orbituary only lists \(9\) publications.