Middlebrook Family History
Middlebrook Surname Meaning
English: habitational name from a lost Micklebrook in Blackburn (Lancashire) recorded as Mikelbroc in the 13th century. The placename appears to derive from Old English micel ‘big’ + brōc ‘brook stream’.
The surname has undergone a dissimilatory or folk-etymological change from Mickle- to Middle-.
Source: Dictionary of American Family Names 2nd edition, 2022