至元二十五年（1288年）改遼陽府置，治所在遼陽縣（今遼寧省遼陽市）。除遼陽縣外，另轄蓋州、懿州。轄境約當今遼寧省遼河下游以東，太子河以南和阜新、彰武、新民等市縣地。遼陽等處行中書省治此[1]。明朝洪武四年（1371年）廢，六年復置，十年裁。
註釋
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