You can find the way to vote for him here.
Leinster quartet Tadhg Furlong, Robbie Henshaw, Hugo Keenan and Josh van der Flier are all shortlisted for the European Player of the Year.
The Eastern province knocked out the holders Exeter Chiefs last weekend and will play La Rochelle in the Heineken Champions Cup semi-finals.
There's 15 players up for the award in total.
You can vote for Robbie Henshaw here.
Here are all the nominees: