Chevrolet straight-6 engine may refer to:

• the 299-cubic-inch (4.9 L) T-head engine used in the 1911–1913 Chevrolet Series C Classic Six
• the 271-cubic-inch (4.4 L) L-head engine used in the 1914–1915 Chevrolet Light Six
• the Chevrolet Stovebolt engine series, introduced in 1929
• the Chevrolet Turbo-Thrift engine series, introduced in 1962

List of GM engines#Inline-6