Masarautar Pahang, wacce kuma ake kiranta da Tsohon Sultanate Pahang, sabanin daular Pahang Sultanate na zamani, kasa ce ta musulmin Malay da aka kafa a yankin gabashin Malay a karni na 15.A tsawon tasirinsa, Sarkin Musulmi ya kasance muhimmiyar iko a tarihin Kudu maso Gabashin Asiya kuma yana iko da dukkanin rafin Pahang, yana iyaka da arewa, da Sultanate Pattani, kuma yana hade da na Johor Sultanate zuwa kudu.A yamma, ya kuma ƙara ikon wani yanki na Selangor na zamani da Negeri Sembilan.^[60]Masarautar ta samo asali ne a matsayin vassal ga Melaka, tare da Sarkinta na farko shi ne basaraken Melakan, Muhammad Shah, shi kansa jikan Dewa Sura, sarkin Melakan na ƙarshe na Pahang.^{[61 <>]} A cikin shekaru da yawa, Pahang ya sami 'yancin kai daga ikon Melakan kuma a wani lokaci ma ya kafa kansa a matsayin kishiya ga Melaka ^[62] har zuwa mutuwar karshen a 1511. A cikin wannan lokacin, Pahang ya shiga cikin yunkurin kawar da tsibirin Peninsula. na daular kasashen waje daban-daban;Portugal , Holland da kuma Aceh.^[63] Bayan wani lokaci na hare-haren Acehnese a farkon karni na 17, Pahang ya shiga cikin haɗin gwiwa tare da magajin Melaka, Johor, lokacin da Sultan na 14th, Abdul Jalil Shah III, ya zama Sarkin Johor na 7.^[64] Bayan wani lokaci na haɗin gwiwa tare da Johor, a ƙarshe an sake farfado da ita a matsayin Sarkin Musulmi na zamani a ƙarshen karni na 19 ta daular Bendahara.^[65]