Dott advanced to the third round of the International Championship courtesy of wins over Jamie Burnett and Peter Ebdon, but he was defeated 1–6 by Neil Robertson. He lost in the second round of the 2015 UK Championship 5–6 to Jack Lisowski.&lt;ref name="2015/16"&gt;&lt;/ref&gt; At the German Masters, he knocked out Tian Pengfei 5–0, Barry Hawkins 5–3, and Stephen Maguire 5–1, to play in his first ranking event semi-final in over two years. He was well below his best against Martin Gould as he lost the first four frames of the match and was defeated 2–6. Dott was eliminated in the third round of both the Welsh Open and China Open, 2–4 to Marco Fu and 1–5 to Noppon Saengkham respectively. Three tight wins helped him qualify for the World Championship, but he lost 4–10 to Mark Williams in the opening round.