Lonely may refer to:
- "Lonely", digital single by 2NE1
- "Lonely", debut digital single by Hyelin
- "Lonely", digital single by Jo Kwon
- "Lonely", third English digital single by Mark Tuan
- "Lonely", first single album by N.Flying
- "Lonely", final single by SISTAR
- Lonely, second mini album by SPICA
- "Lonely", first digital single by Yundak