Kings Island is currently owned by Cedar Fair Entertainment Company. The park has been under Cedar Fair's ownership since 2006, after being previously operated by Paramount Parks from 1992 to 2006

. However, a significant development is that Cedar Fair and Six Flags have announced a merger, which will combine the two companies into a single entity valued at about $8 billion. Once this merger is complete, Kings Island will be part of the combined portfolio of 27 amusement parks owned by the merged company. The merger has been approved by both companies' boards and will create a larger, diversified amusement park operator

. In summary:

• Kings Island was owned by Cedar Fair from 2006 until the merger announcement.
• Cedar Fair and Six Flags are merging, which will change the ownership structure of Kings Island once finalized

• Before Cedar Fair, Kings Island was owned by Taft Broadcasting and later operated by Paramount Parks

Therefore, as of now, Kings Island is owned by Cedar Fair, but ownership will transition to the merged Cedar Fair-Six Flags company upon completion of their merger.