Darin Chappell (born May 28, 1966) is an American politician serving as a Republican member of the Missouri House of Representatives, representing the state's 137th House district.
Chappell has worked as a city administrator for three southwest Missouri cities.
In the 2022 Missouri House of Representatives election, Chappell was elected in District 137. His district is located in Greene County, Missouri.
In 2025, Chappell sponsored legislation to prohibit sanctions on belief-based student groups at public universities and colleges. Opponents to the bill said they preferred the senate version, which includes an anti-discrimination provision.
In 2026, Chappell sponsored a bill that would further restrict abortion rights in Missouri and categorize fetuses as people.
Chappell's niece is singer-songwriter Chappell Roan.