Nicolás Santiago Keenan (born 6 May 1997) is an Argentine field hockey player who plays as a midfielder or forward for Dutch Hoofdklasse club Klein Zwitserland and the Argentina national team.

[2] After the 2016 Junior World Cup in Lucknow, he moved to The Hague, Netherlands to play for HC Klein Zwitserland.

[3] Keenan had the opportunity to represent Spain as a junior, but he chose to play internationally for Argentina.

[8] Keenan was born in Buenos Aires, Argentina, and grew up in Italy and Spain.

[12] This biographical article relating to an Argentine field hockey figure is a stub.