Parking is available in various car parks in the city centre. The closest are:
Princes Quay
and
Zebdee’s Yard
https://www.hullcc.gov.uk/padcbc/publicaccess-live/propertyDetails.do?previousCaseType=Application&previousKeyVal=NXRBY7SO00300&activ
Public transport can also be a good option when visiting the city centre. Paragon Interchange, where you can access the bus and train network is only a short walk from Queen Victoria Square.
Alternatively there is also Park and Ride provision.
https://www.stagecoachbus.com/promos-and-offers/east-midlands/hull-park-and-ride