A Scottish and Irish surname derived from the given name Cináed or Cionaodh, meaning "born of fire."
In the 1881 census there were 111 people recorded with the Mckenney surname, ranking it #18,597 among surnames in the records. By 2016, the modern count was 55, ranked #34,627, down from #18,597 in 1881.
The strongest historical links point to Lanchester (Collierley, Kyo, Billingside, Medomsley, Ebchchester, Benfieldside, Heelyfield, Conside, St Bees and Govan Combination. In the modern distribution records, the strongest local clusters include No data.
Across the surname records, the highest recorded count for Mckenney is 126 in 1861. Compared with 1881, the name has fallen by 50.5%.