| Only a Lonely Heart Knows | |
| Type: | single |
| Artist: | Barbara Mandrell |
| Album: | Clean Cut |
| B-Side: | I Wonder What the Rich Folk Are Doin' Tonight |
| Released: | May 1984 |
| Genre: | Country |
| Length: | 3:48 |
| Label: | MCA |
| Producer: | Tom Collins |
| Prev Title: | Happy Birthday Dear Heartache |
| Prev Year: | 1984 |
| Next Title: | To Me |
| Next Year: | 1984 |
"Only a Lonely Heart Knows" is a song written by Stephen Allen Davis and Dennis Morgan, and recorded by American country music artist Barbara Mandrell. It was released in May 1984 as the second single from her album Clean Cut. The song reached number 2 on the Billboard Hot Country Singles chart in September 1984[1] and number 1 on the RPM Country Tracks chart in Canada.[2]