Adele and Simon - who married in secret in 2016 - announced their separation in April this year but they are "committed to raising their son together lovingly".
The statement from the former couple - who share son Angelo - read: "Adele and her partner have separated. They are committed to raising their son together lovingly. As always they ask for privacy. There will be no further comment."
For her birthday this year, Adele admitted it had been a difficult 12 months and she felt now was the right time to focus on herself.
She wrote: "This is 31 ... thank f**king god. 30 tried me so hard but I'm owning it and trying my hardest to lean in to it all. No matter how long we're here for life is constant and complicated at times. I've changed drastically in the last couple years and I'm still changing and that's okay.
"31 is going to be a big ol' year and I'm going to spend it all on myself. For the first time in a decade I'm ready to feel the world around me and look up for once. Be kind to yourself people we're only human, go slow, put your phone down and laugh out loud at every opportunity. Learning to REALLY truly love yourself is it, and I've only just realised that that is more than enough. (sic)"