Fiona Conway is a character appearing in the episode Not in My Back Yard of the ITV crime drama Midsomer Murders.
Her father, Mr. Conway, was the man who slept with Norman's mother in the early '50s when she left Midsomer. However, nobody in the Great Pelfe knew that it was him who was Norman's biological father and assumed that it was just some passing stranger.
Fiona revealed that, prior to her father's death, "Daddy let it slip" about him being Norman's father. She then told Norman and both decided to keep it a secret.