Explore the Family Name Theys

The meaning of Theys

Dutch: variant, mostly Americanized (or archaic) and Flemish, of Theijs, from a short form of the personal name Mathijs, Dutch form of Matthew. Some characteristic forenames: French Alphonse, Camille, Denys, Emile, Philippe.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Theys in the United States?

According to data from the Decennial U.S. Census, the popularity of the surname 'Theys' has seen a slight decline between 2000 and 2010. In 2000, it held the rank of 48,963 in popularity but dropped slightly to 49,461 in 2010, representing a decrease in popularity of approximately 1.02%. Despite the drop in ranking, the actual count of people with the surname increased by 5.2%, from 404 in 2000 to 425 in 2010. However, when expressed as a proportion per 100,000 people, the frequency of this surname decreased by about 6.67%.

20002010Change
Rank#48,963#49,461-1.02%
Count4044255.2%
Proportion per 100k0.150.14-6.67%

Race and Ethnicity of people with the last name Theys

The ethnic identity associated with the surname 'Theys' also evolved over the decade as per the Decennial U.S. Census data. In 2000, nearly all individuals (97.77%) identified as White, but this fell slightly to 96.71% in 2010. The percentage identifying as Black dropped from 1.24% in 2000 to zero in 2010. Interestingly, the surname saw an appearance in the Hispanic ethnicity category in 2010, where it was previously absent in 2000. No individuals with this surname identified as Asian/Pacific Islander or American Indian and Alaskan Native in either year.

20002010Change
White97.77%96.71%-1.08%
Hispanic0%1.88%0%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
Black1.24%0%0%
American Indian and Alaskan Native0%0%0%