John Henry Clay (born 20 March 1955) is a British rower who competed in the 1976 Summer Olympics and in the 1980 Summer Olympics.

At the 1976 Summer Olympics Clay partnered David Sturge in the coxless pair and finished twelfth.

[1] In 1977 he was part of the eight that reached the final and finished 5th, at the 1977 World Rowing Championships in Amsterdam.

[2] Three years later in the 1980 Summer Olympics Clay was a member of the British boat which won the silver medal in the eights competition.

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