Ireland at the 2011 World Aquatics Championships

Ireland competed at the 2011 World Aquatics Championships in Shanghai, China between July 16 and 31, 2011.

Open water swimming

Ireland qualified 5 swimmers.^[2]

Athlete	Event	Heats		Semifinals		Final
Athlete	Event	Time	Rank	Time	Rank	Time	Rank
Barry Murphy	Men's 50m Freestyle	22.96	35	did not advance
	Men's 50m Breaststroke	28.13	18	did not advance
	Men's 100m Breaststroke	1:02.50	47	did not advance

Athlete	Event	Heats		Semifinals		Final
Athlete	Event	Time	Rank	Time	Rank	Time	Rank
Melanie Nocher	Women's 200m Freestyle	2:01.33	31	did not advance
	Women's 100m Backstroke	1:03.43	37	did not advance
	Women's 200m Backstroke	2:13.39	23	did not advance
Sycerika McMahon	Women's 400m Freestyle	4:16.44	24			did not advance
	Women's 50m Breaststroke	31.49	13 Q	31.83	13	did not advance
	Women's 100m Breaststroke	1:09.91	27	did not advance
Grainne Murphy	Women's 800m Freestyle	8:35.17	17			did not advance
	Women's 1500m Freestyle	16:14.81	10			did not advance
	Women's 400m IM	DNS				did not advance
Sycerika McMahon Melanie Nocher Clare Dawson Grainne Murphy	Women's 4 × 200 m Freestyle Relay	8:07.66	16			did not advance