Sir John Hayes (1768 - 1831) was an eighteenth century explorer for the British East India Company.

References

• Database Of Selected Landings On The Australian Coast From 1606 To 1814 In Chronological Order With Brief Narrative Of The Essentials
• Margriet Roe, 'Sir John (1768 - 1831)', Australian Dictionary of Biography, Online Edition, Copyright 2006, updated continuously, ISSN 1833-7538, published by Australian National University