The 17-year-old star of Disney's Wizards Of Waverly Place - who is launching a range of clothes with George at Asda and whose debut album Kiss And Tell is out on April 19 - feels at her age, with her busy career, she needs time for herself.
Selena said of the rumours: "Not true - I'm single very much single."
The teen star added she doesn't get time in her busy schedule to date.
She said: "I don't unfortunately. I'm trying to tackle everything - which is good because I'm young and I really should kind of date myself for a while - I should probably focus on myself a little bit."
Selena has been compared to fellow Disney teen stars Miley Cyrus and Demi Lovato, but insists she is not competing with them for the spotlight.
She said: "I will totally, completely speak for myself on this one, I don't know them very well, so I don't know how they would... but I'm saying that I'm very lucky and that I love what I do, so there's no room for competition for me. I just want to continue to do what I'm doing and I shouldn't really focus on what everyone else doing, and enjoy what I'm doing."