"Wild World" is a song written and recorded by English singer-songwriter Cat Stevens. It first appeared on his fourth album, Tea for the Tillerman, recorded and released in 1970.
Stevens developed a relationship with actress Patti D'Arbanville and the two were a pair throughout a period of roughly two years. During that time, he wrote several songs about her, including "Wild World".
The song is in the form of the singer's words to his departing lover, inspired by the end of their romance. Stevens later recalled to Mojo: "It was one of those chord sequences that's very common in Spanish music. I turned it around and came up with that theme—which is a recurring theme in my work—which is to do with leaving, the sadness of leaving, and the anticipation of what lies beyond."