Explore the Family Name Mcguff

The meaning of Mcguff

Irish and Scottish: Anglicized form of Gaelic Mac Dhuibh, a patronymic from the personal name or byname Dubh ‘black, dark-haired, swarthy’. Compare McDuff.

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

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

Based on data from the Decennial U.S. Census, the popularity of the surname Mcguff saw a slight shift between 2000 and 2010. In 2000, Mcguff ranked as the 51,809th most common surname, but by 2010, it had fallen to the 53,072nd spot, marking a decrease of 2.44%. The actual number of people carrying the Mcguff surname, however, increased from 377 in 2000 to 390 in 2010, which is an increase of 3.45%. The proportion per 100,000 members of the population with this surname fell slightly from 0.14 to 0.13, showing a decrease of 7.14%.

20002010Change
Rank#51,809#53,072-2.44%
Count3773903.45%
Proportion per 100k0.140.13-7.14%

Race and Ethnicity of people with the last name Mcguff

When it comes to ethnicity, the data from the Decennial U.S. Census shows that those with the Mcguff surname are predominantly White, with a percentage of 96.82% in 2000 decreasing slightly to 93.85% in 2010. There was also a noticeable change in terms of Hispanic representation, which went from being nonexistent in 2000 to making up 3.59% of the Mcguffs in 2010. The percentage of individuals identifying as two or more races also increased slightly, while the representation of American Indian and Alaskan Native dropped to zero. No Mcguff identified as Asian/Pacific Islander or Black in either census year.

20002010Change
White96.82%93.85%-3.07%
Hispanic0%3.59%0%
Two or More Races0%1.79%0%
Asian/Pacific Islander0%0%0%
Black0%0%0%
American Indian and Alaskan Native1.33%0%-100%