The former Labour leader clinched a victory with more than 24,000 votes, compared to Labour candidate Praful Nargund who won more than 16,000.
It will come as a huge relief to Mr Corbyn, who has represented the north London constituency for 40 years.
Speaking at the count, he said: “I want to place on record my enormous thanks to the people of Islington North for electing me for the 11th time.”
He added: "We have shown what kinder, gentler and more sensible, more inclusive politics can bring about.
“I couldn’t be more proud of my constituency than I am tonight and proud of our team that brought this result. Thank you very much Islington North for the result we have achieved tonight.”
Islington North was on a knife edge, with the earlier general election exit poll saying that it was too close to call.
Every other seat in the country - bar Islington North and Corbyn - shows extensive tactical voting to unseat the Tories, so, yes I do absolutely expect that at least 40% would have held their nose.
Do I think what happened to her was fair? No, I don’t. But running out of spite sure is a very individualist approach to a political philosophy defined by the needs of the many outweighing the few.