Hyatt has not been recorded in the list so far. (TOP 2000 NAMES, 2015)
Hyatt is alike in pronunciation to Hewet, Hewett, Hewitt and Hoyt. Other suggested similar names are Hart, Heath▼, Matt▼, Platt, Pratt, Watt, Wiatt and Wyatt▲. These names tend to be more commonly used than Hyatt.See names in meaning and etymology.