Yaari or Ya'ari (Hebrew: יערי) is a Hebrew-language surname. Notable Israeli people with the surname include:
- David Yaari (born 1969), American - Israeli entrepreneur, philanthropist, community organizer and activist
- Ehud Yaari (born 1945), Israeli journalist
- Meir Ya'ari (1897-1987), Israeli politician
- Menahem Yaari (born 1935), Israeli economist
- Sharon Yaari (born 1966), Israeli photographer and educator
- Yedidya Ya'ari (born 1947), Israeli Navy
- Eliezer Yaari, (born 1949), journalist, publicist and CEO