Answer:
No. The most powerful hurricane in terms of wind speed was Allen (1980) with winds of 190+ mph. The most powerful hurricane in terms of low pressure was Wilma (2005) with a central pressure of 882 mb
By comparison Katrina had a central pressure of 902 mb ranking her 6th on the all time list with a wind speed of 175 mph placing her in a tie for 5th with Janet (1955) David (1979) Anita (1977) and Carla (1961)