山后-上杜罗（葡萄牙语：Trás-os-Montes e Alto Douro，葡萄牙语发音：['tɾaz-uʃ-'mõtɨʃ i 'aɫtu 'do(ow)ɾu]）是葡萄牙历史上的一个省份。今日为北部大区的一部分。
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