Explore the Family Name Donnellan

The meaning of Donnellan

Irish (Galway): shortened Anglicized form of Gaelic Ó Domhnalláin ‘descendant of Domhnallán’, a diminutive of the personal name Domhnall (see Donlon). Some characteristic forenames: Irish Brendan, Brennan, Brigid, Conan, Nuala, Seamus.

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

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

The popularity of the surname Donnellan, according to data from the Decennial U.S. Census, witnessed marginal fluctuations between 2000 and 2010. In 2000, it was ranked 17,426th in prevalence, which slightly dropped to the 17,720th position by 2010, marking a decrease by approximately 1.69%. However, the count of individuals bearing this last name increased from 1,492 to 1,582 during the same period, growing by 6.03%. The proportion of people with this surname per 100,000 individuals also saw a slight decrease from 0.55 to 0.54.

20002010Change
Rank#17,426#17,720-1.69%
Count1,4921,5826.03%
Proportion per 100k0.550.54-1.82%

Race and Ethnicity of people with the last name Donnellan

The ethnic identity associated with the surname Donnellan showed some changes over the decade as well, based on the Decennial U.S. Census data. The percentage of those identified as Asian/Pacific Islander more than doubled from 0.40% in 2000 to 0.88% in 2010. Individuals indicating two or more races and Hispanic ethnicity also saw increases of 31.68% and 32.66% respectively. Those identifying as white remained the most prevalent group, although their representation decreased slightly from 95.64% to 94.18%. The proportion of Black individuals bearing the surname declined from 0.47% to 0.32%, while the American Indian and Alaskan Native category maintained a constant representation of 0.00%.

20002010Change
White95.64%94.18%-1.53%
Hispanic2.48%3.29%32.66%
Two or More Races1.01%1.33%31.68%
Asian/Pacific Islander0.4%0.88%120%
Black0.47%0.32%-31.91%
American Indian and Alaskan Native0%0%0%