Billie Jo Spears (born Billie Jean Moore; January 14, 1938 – December 14, 2011) was an American country music singer. She was known for a series of singles whose characters often represented women in assertive positions. Among these recordings was a song about sexual harassment ("Mr. Walker, It's All Over"), and a song about rekindling sexual desire ("Blanket on the Ground)".

Spears was raised in a working-class Texas family. She made her first recording at age 13 on the Abbott label. Singer–songwriter Jack Rhodes discovered her early music and helped her secure a professional partnership with producer Kelso Herston. Under Herston's production, she had her first top-ten song with 1969's "Mr. Walker, It's All Over" (issued on Capitol Records). Several follow-up releases were not successful, and after recovering from a vocal setback she returned to United Artists. Her second release was 1975's "Blanket on the Ground", which topped the American country chart and became a commercial pop success in several countries.

Spears followed with several more American top ten and top 20 country songs like "What I've Got in Mind", "Misty Blue", "If You Want Me", "'57 Chevrolet" and a cover of "I Will Survive". Spears continued to have success overseas, particularly in the United Kingdom where she had several more top 40 songs. In 1981, Spears left United Artists (now Liberty) and recorded several albums with British labels during the 1980's and 90's. She also continued to tour throughout, most notably in the United Kingdom. Meanwhile, Spears married and divorced five times between the 1960's and 90's. In 2011, Spears died of cancer at age 73.