Sir John Logan Campbell (1817 - 1912) was a prominent New Zealand public figure. He was sometimes described by his contemporaries as "the father of Auckland".

Logan Campbell was born in Edinburgh, Scotland, on 3 November 1817. He graduated as a Doctor of Medicine from the University of Edinburgh in 1839, and sailed for Australia later that year. In 1840, he came to New Zealand, arriving first in Coromandel and then Auckland.

Logan Campbell quickly became prominent in Auckland, both in business circles and in public life. He served as Superintendent of Auckland Province, and later entered the 2nd New Zealand Parliament (representating first the City of Auckland electorate and then the Suburbs of Auckland electorate). Campbell was a minister without portfolio in the government of Edward Stafford. Later, Logan Campbell was elected Mayor of Auckland. He received a knighthood in 1902.

Logan Campbell died on 22 June 1912. He is buried on the summit of Auckland's famous One Tree Hill, which he had named.