Tester (surname)
# Tester (surname)

Tester, and variants Testar and Testard, is a surname of French origin, originally given as a nickname to one with a large head.

The name may refer to:

## In the arts

* Desmond Tester (1919–2002), Anglo-Australian actor
* Ruth Tester (1903–1993), American actress
* Scan Tester (1887–1972), English folk and country musician
* William Tester (born 1960), American novelist

## In politics

* John Tester (1835–1918), American politician and businessman
* Jon Tester (born 1956), U.S. Senator from Montana

## Other people

* Mark Tester (born 1963), Australian botanist
* Ralph Tester (1902–1998), head of the Testery, a British codebreaking station at Bletchley Park
