Kylie Jenner's embracing her role as the New York Knicks' good luck charm ... heading all the way to Indianapolis in hopes of keeping her boyfriend Timothée Chalamet's favorite team's championship dream alive.
The actor and the mogul sat courtside together Saturday night ... both decked out in Knicks blue and orange at the biggest game of the year.
Check out the clip ... Kylie's so excited to be there with her man -- wrapping her arms around him and trying to get him hyped while he throws up a peace sign for the camera.