Sir Philip Magnus, 1st Baronet (7 October 1842 – 29 August 1933) was an English educational reformer, rabbi, and politician, who represented the London University constituency as a Unionist Member of Parliament from 1906 to 1922. He had previously been appointed director of the City and Guilds of London Institute, from where he helped oversee the creation of a modern system of technical education in the United Kingdom. He was married to the writer and teacher Katie Magnus, and was father of the publisher Laurie Magnus. Laurie predeceased him, and on his own death in 1933 he was succeeded in the baronetcy by Laurie's eldest son Philip.