The Isaac Newton University Lodge (INUL) is a Freemasons Lodge for past and present members of Cambridge University. The lodge is one of twenty-six lodges in the masonic Province of Cambridgeshire and has a current membership of about 130. INUL has links with many university lodges within England and throughout the world and has a jumelage with Robert de Sorbon Lodge of the Grande Loge Nationale Francaise.

The normal qualifying age for Membership of a masonic lodge is 21 years but the Lodges of Oxford and Cambridge Universities have the unique distinction of exception from this rule and may initiate undergraduate members under this age by dispensation of the Provincial Grandmaster.

Meeting of the lodge are held at:

Freemasons Hall, Bateman Street, Cambridge