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.
I'm a big fan of Corbyn, I think he would've been an excellent PM and would have genuinely done a lot for working class people in the UK.
The vilification he endured by the media and political class was completely abhorrent. For me, he's one of a small number of actually good politicians.
Glad to see the people of his constituency still believe in him.