Explore the Family Name Dinan

The meaning of Dinan

1. Irish (now mainly counties Clare and Cork): shortened Anglicized form of Gaelic Ó Daghnáin ‘descendant of Daghnán’, possibly a diminutive of dagh ‘good’. 2. Irish: variant of Dineen. 3. French: habitational name from Dinan, in Côtes-d’Armor, Brittany. This surname is very rare in France.

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

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

Based on the Decennial U.S. Census, the surname Dinan experienced a slight decrease in popularity between 2000 and 2010. The rank of the surname slipped from 16,769 in 2000 to 17,249 in 2010, marking a decrease of 2.86%. However, the count of people bearing this surname actually increased by 4.72%, rising from 1,568 individuals in 2000 to 1,642 in 2010. Similarly, the proportion per 100k also saw a minor decline of 3.45%, from 0.58 to 0.56.

20002010Change
Rank#16,769#17,249-2.86%
Count1,5681,6424.72%
Proportion per 100k0.580.56-3.45%

Race and Ethnicity of people with the last name Dinan

The ethnic identity associated with the surname Dinan saw significant changes between 2000 and 2010. According to the Decennial U.S. Census data, the percentage of Asian/Pacific Islanders with the surname Dinan saw the most significant increase of 178.77%, jumping from 1.79% to 4.99%. There was also a 43.14% increase in those identifying as two or more races, moving from 1.02% to 1.46%. Meanwhile, those identifying as White decreased by 7.18%, dropping from 95.66% to 88.79%. Hispanic representation also emerged within this period, accounting for 3.41% in 2010. The percentage of Black individuals with this surname dropped to zero from a previous 0.83%, while the proportion of American Indian and Alaskan Native remained constant at zero throughout the decade.

20002010Change
White95.66%88.79%-7.18%
Asian/Pacific Islander1.79%4.99%178.77%
Hispanic0%3.41%0%
Two or More Races1.02%1.46%43.14%
Black0.83%0%0%
American Indian and Alaskan Native0%0%0%