The Batley & Spen MP tweeted on Sunday night: ‘We did it! I’m proud to be the first West Yorkshire Metro Mayor and I’m incredibly humbled and grateful for every single vote.
‘I will fight for every single resident so everyone has the opportunity to succeed. Thank you.’
Ms Brabin won the seat in 2016, when she replaced her murdered predecessor Jo Cox in an emotional by-election.
But the former Coronation Street actress will now stand down from the role after beating Conservative Matt Robinson in the mayoral contest.
Sge received the most first and second preference votes, with a total of 310,923, to Mr Robinson’s 101,786.
Ms Brabin, who won the contest on her 60th birthday, becomes Labour’s 11th candidate to claim a mayoral post – after 13 elections in cities and metropolitan areas across England.
But the party faced a torrid local election campaign and took a battering in many other local elections across England.
Labour also lost the Hartlepool by-election and will now face a tricky campaign in Ms Brabin’s old seat.
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