封斋饭（阿拉伯语：سحور‎，「黎明的」），是穆斯林在伊斯兰历九月，即拉马丹月（斋月）每天早上、第一次礼拜（晨礼）前所吃的饭菜。吃完到黄昏以前穆斯林都不会再饮食。

Suhūr (Arabic:سحور‎ suḥūr, lit. "of the dawn", "pre-dawn meal"; also spelled suhoor, sahur, or sehri) is an Islamic term referring to the meal consumed early in the morning by Muslims before fasting, sawm, before sunrise during the Islamic month of Ramadan. The meal is eaten before fajr prayer. Suhur as the morning meal is matched by Iftar as the evening meal, during Ramadan, replacing the traditional three meals a day (breakfast, lunch and dinner), although in some places dinner is also consumed after Iftar later during the night. Being the last meal eaten by Muslims before fasting from dawn to sunset during the month of Ramadan, suhur is regarded by Islamic traditions as a benefit of the blessings in that it allows the person fasting to avoid the crankiness or the weakness caused by the fast.