Swimming was contested at the 1974 Asian Games in Aryamehr Swimming Pool, Tehran, Iran from September 2 to September 7, 1974. 
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Results.
Note: The following lists may not be complete.
Men.
100 m freestyle.
September 6
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200 m freestyle.
September 2
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400 m freestyle.
September 4
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1500 m freestyle.
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100 m backstroke.
September 6
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200 m backstroke.
September 2
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100 m breaststroke.
September 3
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200 m breaststroke.
September 4
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100 m butterfly.
September 5
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200 m butterfly.
September 3
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200 m individual medley.
September 7
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400 m individual medley.
September 6
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4 × 100 m freestyle relay.
September 7
4 × 200 m freestyle relay.
September 3
4 × 100 m medley relay.
September 5
Women.
100 m freestyle.
September 7
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200 m freestyle.
September 2
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400 m freestyle.
September 5
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100 m backstroke.
September 3
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100 m breaststroke.
September 2
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200 m breaststroke.
September 4
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100 m butterfly.
September 6
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200 m individual medley.
September 3
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4 × 100 m freestyle relay.
September 4
4 × 100 m medley relay.
September 7
References.
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