Former ‘TOWIE’ cast member Dan, who was axed from the ITVBe docusoap earlier this year, confirmed the news on his Twitter page on Monday afternoon, describing Jacqueline as "the woman of his dreams".
Dan Osborne and Jacqueline Jossa
It's thought that he proposed during the couple's recent family holiday to Greece, where they also took their baby daughter, Ella.
A source tells Now magazine: “Yes, it’s true. Dan and Jacqueline are engaged and they’re both over the moon.
The couple began dating last year, and months later announced that they were expecting the first child together, welcoming a daughter, Ella, into the world back in February.
Dan also has a one-year-old son, Teddy, with his ex-girlfriend, Megan Tomlin.
His relationship with Megan took a turn for the worse earlier this year, when The Sun published leaked audio allegedly containing Dan making violent threats towards his ex-girlfriend.
The ensuing controversy saw him axed from his job on ‘TOWIE’, though Jacqueline later defended him on her Twitter page, insisting: “People selling stories on him, show one side to a story, but people around Dan know the whole truth, and you would all be shocked.
“I am 100 percent not saying what Daniel has said was right or okay, but people make mistakes when in dark places, and it's something we sorted out privately not in front of the whole world, it's something he has apologised for and is embarrassed about.”
His former co-star, Gemma Collins, recently came to his defence, claiming she thinks ‘TOWIE’ bosses should give him a second chance and allow him back on the show.