Omer may refer to:

• Omer (Bible), an ancient unit of measure used in the era of the ancient Temple in Jerusalem
• Omer (submarine), the fastest human powered submarine at the International Submarine Races
• Omer, Israel, a town in the south of Israel, near Beersheba
• Omer, Michigan
• Omer Bin Khattab, the 2nd caliph of the Islamic empire, known for conquering Spain and Persia
• Omer (Book of Mormon), a Jaredite king in the Book of Mormon
• Omer is a common first name in modern-day Israel
• Counting of the Omer
• Omer means "age" in Urdu, the language of Pakistan

Omer