遼河平原，是位於遼寧省境內的沖積平原。該平原夾於遼寧省東西部丘陵之間，南至遼東灣。是由其境內的遼河下游泥沙沖積而成。
該平原地勢地平，北高南低，海拔一般低於50米，遼河入海口處海拔在10米以下。平原上河流眾多，水流較緩，沙洲密佈，港汊縱橫。因沉降堆積旺盛，平原上河床較高，分佈有較多沼澤，汛期常影響排澇。泥沙淤積也使得遼河平原逐漸向遼東灣發展。[1]
參考資料
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