The 2017 Copa do Brasil Fourth Round was played from 12 April to 19 April 2017,[1] [2] to decide the 5 teams advancing to the Round of 16. In this year, each tie was played on a home-and-away two-legged basis. If tied on aggregate, the away goals rule would be used. If still tied, extra time would not be played, and the penalty shoot-out would be used to determine the winner.[3]
A draw for the fourth round was held by CBF on March 17, 2017. The 10 qualified teams were in a single group.[4]
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----Tied 3–3 on aggregate, Sport won on penalties and advanced to the round of 16.
----Paraná won 2–0 on aggregate and advanced to the round of 16.
----Fluminense won 4–2 on aggregate and advanced to the round of 16.
----Tied 2–2 on aggregate, Internacional won on penalties and advanced to the round of 16.
----Cruzeiro won 3–2 on aggregate and advanced to the round of 16.