|Date of birth||6 November 1995|
|Place of birth||Carshalton, England|
|Height||1.99 m (6 ft 6 ½ in )|
|Weight||118 kg (18 st 8 lb; 260 lb)|
|School||The John Fisher School|
|Rugby union career|
He attended The John Fisher School as a pupil. Before joining Irish province Ulster ahead of the 2016–17 Pro12 season, Treadwell played for English side Harlequins, having come through their Academy as a youth.
He qualifies for Ireland through his Irish mother and represented the country at Under-18 level, before representing England at Under-20 level. On 16 May 2017, when Ireland Head Coach Joe Schmidt named his squad for the 2017 Summer Tour, he gave Treadwell his first senior international call-up.
- "Ulster Rugby confirm signing of Kieran Treadwell from Harlequins". belfasttelegraph.co.uk. 22 January 2016. Retrieved 22 May 2017.
- "Kieran Treadwell is learning from the best at Ulster Rugby". belfastlive.co.uk. 27 December 2016. Retrieved 22 May 2017.
- "Kieran Treadwell: Ulster sign England U20 lock Kieran Treadwell". bbc.co.uk. 22 January 2016. Retrieved 22 May 2017.
- "Eight Uncapped Players In Ireland Summer Tour Squad". irishrugby.ie. 16 May 2017. Retrieved 16 May 2017.
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