"Leave Me Alone (I'm Lonely)" is a song recorded by American singer Pink for her fourth studio album I'm Not Dead (2006).

The song was released as the fifth single from I'm Not Dead in select international countries on March 12, 2007, by LaFace Records, to mixed critical reception.

IGN's wrote a mixed to favorable review for the song, stating that "The title should say it all and reveal the ball of confusion that Pink really is.

[3] Todd Murphs from Stylus Magazine wrote a mixed review, saying that "the ode to schizophrenia, “Leave Me Alone (I’m Lonely),” which may rely too much on the chorus, but at little over three minutes, it’s hardly a bother.

[4] Entertainment Weekly's Chris Willman wrote that "it's a pissy yet affectionate rocker that throws down competing desires for attentiveness and space in a relationship.