Hotel Blackhawk will be associated with Marriot's Autograph Collection.
Davenport leaders said the change is good not only for the hotel but also the city's economy.
The change hopes to lure in more business travelers.
"Marriot is obviously one of the largest hotel chains, one of the best in the world," Downtown Davenport Partnership Director Kyle Carter said. "Business travelers get points, so business travelers will be able to take advantage of the Blackhawk being a part of that family."
He said the hotel won't lose it's unique identity but will just be hooked into a larger network to allow more people to see and use it.