Costain

Last updated September 04, 2025

Costain is a surname of English, Scottish and Manx origin.^[1] When originating in Scotland and northern Ireland the surname is an Anglicisation of the Gaelic Mac Austain, meaning "son of Austin". The English surname is a reduced form of Constant or Constantine .^[1]

People named Costain

Danny Costain, American politician
Molly Costain Haycraft (1911-2005), Canadian, author
Albert Costain (1910—1987), British, politician
Richard Costain (1839–1902), British founder of the Costain construction business
Thomas B. Costain, (1885-1965), Canadian, journalist, author

References

1 2 "Costain Name Meaning and History". Ancestry.com . Retrieved 23 December 2008.

This page lists people with the surname Costain.
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[Costain-1] 1 2 "Costain Name Meaning and History". Ancestry.com . Retrieved 23 December 2008.

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