The EastEnders actress gave birth yesterday evening (Sunday February 15), and she and Dan shared the happy news with their fans on Twitter this morning.
Proud dad Dan, who already has a 13-month-old son called Teddy from a previous relationship, was the first to tweet.
Jacqueline, 22, quickly followed up with a tweet thanking TOWIE star Dan and her mother Selina for their support.
According to our baby names finder the name Ella has either Latin or Germanic roots. Other famous parents to have named their daughters Ella include Danielle Lineker, Ben Stiller, John Travolta and Jenni Falconer.
Jacqueline and Dan confirmed they were expecting a baby last August. The news came just eight months after Dan welcomed Teddy in December 2013.
Dan said in a statement: "Becoming a father has been the most amazing thing to ever happen to me. I can't believe I'm going to be dad again - I'm truly blessed."
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