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

Medal	Name	Sport	Event	Date
Silver	Konrad Czerniak	Swimming	Men's 100m Butterfly	30 July

Poland has qualified 1 athlete in diving.^[1]

Men

Men (9): Paweł Korzeniowski, Sławomir Kuczko, Radosław Kawęcki, Konrad Czerniak, Marcin Tarczyński, Mateusz Sawrymowicz, Filip Wypych, Dawid Szulich, Marcin Cieślak

Women (3): Otylia Jędrzejczak, Mirela Olczak, Alicja Tchórz^[2]

Men

Athlete	Event	Heats		Semifinals		Final
		Time	Rank	Time	Rank	Time	Rank
Filip Wypych	Men's 50m freestyle	22.99	36	did not advance
Konrad Czerniak	Men's 100m Freestyle	48.92	15 Q	48.48	9	did not advance
	Men's 50m Butterfly	23.52	7 Q	23.48 NR	9	did not advance
	Men's 100m Butterfly	52.10	6 Q	51.54	2 Q	51.15 NR
Mateusz Sawrymowicz	Men's 400m Freestyle	3:56.22	31			did not advance
	Men's 1500m Freestyle	15:02.56	9			did not advance
Radosław Kawęcki	Men's 100m Backstroke	55.01	28	did not advance
	Men's 200m Backstroke	1:57.97	8 Q	1:57.15	5 Q	1:57.33	5
Marcin Tarczyński	Men's 100m Backstroke	55.28	33	did not advance
	Men's 200m IM	2:01.14	23	did not advance
Dawid Szulich	Men's 50m Breaststroke	28.34	28	did not advance
	Men's 100m Breaststroke	1:02.24	43	did not advance
Sławomir Kuczko	Men's 200m Breaststroke	2:13.75	24	did not advance
Paweł Korzeniowski	Men's 100m Butterfly	52.57	16 Q	52.54	14	did not advance
	Men's 200m Butterfly	1:56.51	9 Q	1:55.85	8 Q	1:55.39	6
Marcin Cieślak	Men's 200m Butterfly	1:56.56	10 Q	1:56.13	11	did not advance
	Men's 200m IM	1:59.77	12 Q	2:01.65	16	did not advance
Marcin Tarczyński Dawid Szulich Paweł Korzeniowski Konrad Czerniak Radosław Kawęcki*	Men's 4 × 100 m Medley Relay	3:36.13	7 Q			3:37.44	8

• * raced in heats only

Women