Briza is a genus of annual and perennial plants in the grass family, native to northern temperate regions of Eurasia, North Africa, and certain islands in the Atlantic.

The group is generally referred to as the quaking grasses because the flowers and seedheads shake on their stalks in the slightest breeze. Some of its members are grown as ornamental plants.

Briza species are used as food plants by the larvae of some Lepidoptera species including Coleophora lixella.

Species

• Briza humilis M.Bieb. – from Albania to Iran
• Briza marcowiczii Woronow – Turkey, Caucasus
• Briza maxima L. – Mediterranean, Azores, Madeira, Canary Islands; naturalized in parts of Asia, Africa, Australia, the Americas, and certain oceanic islands
• Briza media L. – Europe, Asia, North Africa, Azores, Canary Islands; naturalized in New Zealand and parts of North America
• Briza minor L. – from Azores + Canary Islands to Iran; naturalized in parts of Asia, Africa, Australia, the Americas, and certain oceanic islands

Over 100 species formerly included in Briza are now placed in other genera, including Agrostis, Airopsis, Chascolytrum, Desmazeria, Desmostachya, Distichlis, Eragrostis, Glyceria, Halopyrum, Neesiochloa, Poa, Tribolium, Trisetum and Uniola.