João Maurício Vanderlei or Wanderley, first and only baron of Cotegipe (October 23, 1815 – February 13, 1889), was a Brazilian magistrate and politician of the Conservative Party.

Born as the son of João Maurício Vanderlei, a Dutch descendant,[1] and Francisca Antónia do Livramento, of Portuguese ancestry.

Wanderley was responsible for the approvement of the Sexagenarians Law in 1885, which granted freedom to slaves who were older than 60 years old.

Months later, as a senator, he was the only one to vote against the approval of the Golden Law, which abolished slavery.

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