Masei, Mas'ei, or Masse (מַסְעֵי‎—Hebrew for "journeys," the second word, and the first distinctive word, in the parashah) is the 43rd weekly Torah portion (פָּרָשָׁה‎, parashah) in the annual Jewish cycle of Torah reading and the 10th and last in the Book of Numbers. The parashah comprises Numbers 33:1–36:13. The parashah discusses the stations of the Israelites' journeys, instructions for taking the land of Israel, cities for the Levites and refuge, and the daughters of Zelophehad.

It is made up of 5,773 Hebrew letters, 1,461 Hebrew words, 132 verses, and 189 lines in a Torah Scroll (סֵפֶר תּוֹרָה‎, Sefer Torah). Jews generally read it in July or August. The lunisolar Hebrew calendar contains up to 55 Saturdays, the exact number varying between 50 in common years and 54 or 55 in leap years. In some leap years (for example, 2014), parashat Masei is read separately. In most years (all coming years until 2035 in both the Diaspora and Israel), parashat Masei is combined with the previous parashah, Matot, to help achieve the number of weekly readings needed.

In traditional Sabbath Torah reading, the parashah is divided into seven readings, or עליות‎, aliyot.

In the first reading, Moses recorded the various journeys of the Israelites from the land of Egypt as directed by God as follows: They journeyed from Rameses to Sukkoth to Etham to Pi-hahiroth to Marah to Elim to the Sea of Reeds.

In the second reading, the Israelites journeyed from the Sea of Reeds to the wilderness of Sin to Dophkah to Alush to Rephidim to the wilderness of Sinai to Kibroth-hattaavah to Hazeroth to Rithmah to Rimmon-perez to Libnah to Rissah to Kehelath to Mount Shepher Haradah to Makheloth to Tahath to Terah to Mithkah to Hashmonah to Moseroth to Bene-jaakan to Hor-haggidgad to Jotbath to Abronah to Ezion-geber to Kadesh to Mount Hor. At God's command, Aaron ascended Mount Hor and died there, at the age of 123 years. They journeyed from Mount Hor to Zalmonah to Punon to Oboth to Iye-abarim to Dibon-gad to Almon-diblathaim to the hills of Abarim to the steppes of Moab.

In the third reading, in the steppes of Moab, God told Moses to direct the Israelites that when they crossed the Jordan into Canaan, they were to dispossess all the inhabitants of the land, destroy all their figured objects, molten images, and cult places, and take possession of and settle in the land. They were to apportion the land among themselves by lot, clan by clan, with the share varying with the size of the group. But God warned that if the Israelites did not dispossess the inhabitants of the land, those whom they allowed to remain would become stings in their eyes and thorns in their sides, and would harass the Israelites in the land, so that God would do to the Israelites what God had planned to do to the inhabitants of the land. God then told Moses to instruct the Israelites in the boundaries of the land, which included the Dead Sea, the wilderness of Zin, the Wadi of Egypt, the Mediterranean Sea, Mount Hor, the eastern slopes of the Sea of Galilee, and the River Jordan. Moses informed the Israelites that the tribe of Reuben, the tribe of Gad, and the half-tribe of Manasseh had received their portions across the Jordan.

In the fourth reading, God told Moses the names of the men through whom the Israelites were to apportioned the land: Eleazar, Joshua, and a chieftain named from each tribe.

In the fifth reading, God told Moses to instruct the Israelites to assign the Levites out of the other tribes' holdings towns and pasture land for 2,000 cubits outside the town wall in each direction. The Israelites were to assign the Levites 48 towns in all, of which 6 were to be Cities of Refuge to which a manslayer could flee. The Israelites were to take more towns from the larger tribes and fewer from the smaller.