The 22-year-old centre-back has been a standout performer for Les Phoceens this season, helping them to mount a title challenge in Ligue 1.
He has recently been linked with a move to Arsenal, as reports suggest that the South-East France outfit could look to cash in this summer.
However, the Cameroon international said that he is focused on life at the Stade Velodrome for the moment.
"I want to finish the season strongly and then we will talk about my position," Nkoulou told Sky Sports News.
"I love Marseille, they have been great to me. I am happy if everyone is a winner."
Nkoulou moved to the club from Monaco in 2011.