Live Oak may refer to:

• The live oak, any of several types of oak trees that have evergreen foliage.

• Live Oak, Santa Cruz County, California, a census-designated place
• Live Oak, Sutter County, California, an incorporated city
• Live Oak, Florida, an incorporated city
• Live Oak (Weyanoke, Louisiana), plantation house and site listed on the NRHP in Louisiana
• Live Oak, South Carolina, a census-designated place
• Live Oak, Texas, an incorporated city
• Live Oak County, Texas

• Live Oak High School (Morgan Hill, California)
• Live Oak High School (Louisiana), in Watson

• Live Oak Brewing Company, a craft brewery located in Austin, Texas
• LIVE OAK (planning group), the code name for a military planning group during the Cold War
• Live Oak Library, a LA County Library branch in Arcadia, California