CVCC, or Compound Vortex Controlled Combustion , is an internal combustion engine technology developed and trademarked by the Honda Motor Company.

The E-series was a line of inline four-cylinder automobile engines designed and built by Honda for use in their cars in the 1970s and 1980s. These engines were notable for the use of CVCC technology, introduced in the ED1 engine in the 1975 Civic, which met 1970s emissions standards without using a catalytic converter.