The midfielder assisted Crystal Palace in overturning a 1-0 deficit and defeating Leeds United 5-1 at Elland Road.
With eight games remaining, the Londoners moved six points clear of the relegation zone after winning two straight games for the first time since November.
After Arsenal forward Leandro Trossard, he is the second player in the Premier League this year to provide three assists in a single game.
When it comes to players age 21 or younger in the Premier League, only Arsenal winger Bukayo Saka (17) has assisted more goals than Olise(8) since the beginning of last season.
