|Full name||William Iain Henderson|
|Date of birth||21 February 1992|
|Place of birth||Craigavon, Northern Ireland|
|Height||1.96 m (6 ft 6 in)|
|Weight||118 kg (18 st 8 lb; 260 lb)|
|Rugby union career|
William Iain Henderson (born 21 February 1992), more commonly known as Iain Henderson is an Irish professional rugby union player who currently plays for Ulster. Henderson started his rugby career at Belfast Royal Academy where he excelled at all age levels up to, and including the school's 1st XV when he guided them to the final of the Ulster Schools' Cup in 2010.
During the time playing for the Ireland U20 side, he assisted in securing 5th place in the 2012 U20 World Championships helping the team beat South Africa, England and France.
Henderson has been called up for the Lions tour of New Zealand in June 2017.
-  Ulster Iain Henderson Profile
-  Additional Players Drafted Into Ireland Squad
- "Pressure increases on Declan Kidney as limp second half exposes Ireland’s limitations". Irish Independent. 12 November 2012. Retrieved 13 November 2012.
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