Sitting at No. 85 in the rankings, Baghdatis decided to begin his 2015 season on the ATP Challenger Tour, at the city of Onkaparinga. He made the final, before bowing out to American Ryan Harrison in straight sets. Baghdatis returned to the Australian Open, hoping to re-discover his best form. In the opening round, Baghdatis fought off Teymuraz Gabashvili 6–2, 6–7, 3–6, 6–4, 6–4. In round two, he upset 22nd-ranked David Goffin 6–1, 6–4, 4–6, 6–0 with an impressive display of attacking tennis. Baghdatis's campaign ended in dramatic fashion in round 3 against Grigor Dimitrov. The Cypriot rode the abundant emotion and Greek chanting on showcourt 3 to twice lead by a set before Dimitrov found another gear to win 4–6, 6–3, 3–6, 6–3, 6–3.