Peter Williamson may refer to:
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Peter Williamson (memoirist) (1730–1799), aka "Indian Peter", Scottish memoirist who was part-showman, part-entrepreneur and inventor
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Peter Williamson (footballer) (born 1953), Australian rules footballer
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Peter J. Williamson (1823–1907), Dutch-American architect
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Pete Williamson (1946–1991), Canadian Olympic speed skater
{{hndis, Williamson, Peter