Everton host Tottenham today and are dreaming of a return to Europe for the first time since the 2009-10 season.
Fellaini, 25, told The Sun: "My head is exclusively with Everton - I'm saying nothing about all the rumours.
"Although I'm happy to be praised for my performances, my future is with Everton.
"I'm on a good run and I want that to continue against Spurs.
"We are playing well enough to fight for a European place, even the Champions League, but we must retain this rhythm all season.
"It won't be easy but we want to do it - our fans deserve to have some more big European nights.
"I am pleased with my current form. There's no secret to it - it's a combination of luck, work and good positioning in the penalty area.
"I do what the forwards do... and score goals!"