List of alumni of St John's College, Cambridge

The following is a list of notable people educated at St John's College, Cambridge.

When available, years of attendance are provided as indicated in the College Register or in the Oxford Dictionary of National Biography.

Over 1000 former members of St John's College appear in the Oxford Dictionary of National Biography.

[1] Three Royal Medals, known also as the Queen's Medals, are awarded annually by the Sovereign upon the recommendation of the Council of the Royal Society, "two for the most important contributions to the advancement of Natural Knowledge (one in the physical and one in the biological sciences) and the other for distinguished contributions in the applied sciences".

The first Royal Medal was awarded in 1826 and previous recipients include thirty-eight Johnians.