帕夏，前称贝萧（土耳其语：paşa）是奥斯曼帝国行政系统里的高级官员，通常是总督、将军及高官。帕夏是敬语，相当于英国的「勋爵」，是埃及前共和时期地位最高的官衔。

语源学家个别地将帕夏一词的来历追溯至土耳其语 baş ağa，意指「首长」、「部落领袖」等，或波斯语：پادشاه‎ pādshāh。古土耳其语在音标/b/与/p/之间没有固定的差别，西欧初始采纳这词时，以「b」字起始。在十六及十七世纪间出现的英语bashaw、bassaw、bucha等字演化自中世纪的拉丁语及意大利语 bassa。由于奥斯曼帝国雄据阿拉伯世界，帕夏一词广泛地应用在阿拉伯语，阿拉伯语并没有「p」字，故读为basha。

Pasha or pascha (Ottoman Turkish:پاشا‎, Turkish:paşa), formerly anglicized as bashaw, was a higher rank in the Ottoman Empire political and military system, typically granted to governors, generals and dignitaries and others. As an honorary title, Pasha, in one of its various ranks, is similar to a British peerage or knighthood, and was also one of the highest titles in pre-republican Egypt. There were three ranks of pashas: the first, or highest class, had the privilege of bearing a standard of three horse-tails, the second of two, and the third of one.