The 53-year-old returned to the Bramall Lane to take over as boss in May 2016 and has since led the club – which he grew up supporting and later played for – on a remarkable journey from League One to the Premier League – and to within a whisker of qualifying for the Europa League last season.
Here we take a quick trip down memory lane to look at some of Wilder’s more memorable and magical moments during his time on the touchline at United.
5. Derby day joy
A chest-thumping Wilder celebrates with the United faithful after his side's stunning 4-2 'bounce killer' win over arch rivals Sheffield Wednesday at Hillsborough in September 2017. Photo: Joe Perch
6. Nearly there . . .
The United boss acknowledges jubilant supporters on the Kop after victory over Ipswich Town at the Lane in April 2019 all-but seals promotion to the Premier League. Photo: Jan Kruger
7. We are going up . . .
Wilder celebrates a second promotion but this time to the Premier League after his side's final game of the Sky Bet Championship season at Stoke City in May 2019. Photo: Dave Howarth
8. Promotion parade
A delighted Wilder leads the celebrations during the promotion parade in Sheffield city centre to toast United's promotion back to the top flight in May 2019. Photo: Danny Lawson