Harlequin American Romance Series by Author’s Last Name – O
back to Harlequin American Romance Series list
| # | Author | Book Title | Year |
| # 1676 | Olson, Ali | The Bull Rider’s Twin Trouble | 2018 |
| # 1688 | Olson, Ali | The Cowboy’s Surprise Baby | 2018 |
| # 111 | Orr, Zelma | From This Day | 1985 |
| # 18 | Orr, Zelma | In the Eyes of Love | 1983 |
| # 55 | Orr, Zelma | Love Is a Fairy Tale | 1984 |
| # 82 | Orr, Zelma | Measure of Love | 1984 |
| # 7 | Orr, Zelma | Miracles Take Longer | 1983 |
| # 94 | Orr, Zelma | Someone Else’s Heart | 1985 |
| # 124 | Orr, Zelma | Where Fires Once Burned | 1985 |