William Clay

William Clay may refer to:

• William Clay, owner of the Mersey Steel and Iron Co, an early user of Bessemer process in Liverpool
• Bill Clay (William Lacy Clay, Sr., born 1931), politician from the state of Missouri
• William Lacy Clay, Jr. (born 1956), politician from the state of Missouri
• Sir William Clay, 1st Baronet, (1791–1869), English merchant and MP for Tower Hamlets
• William Keatinge Clay
• Willie Clay, former American football player
• Billy Clay, American football cornerback
• Bill Clay (cyclist), American track cyclist who competed in the 1995 UCI Track Cycling World Championships

See also

• William Clay Ford (disambiguation)
• Clay (surname)