Sir John Simon, SL (9 December 1818 – 24 June 1897) was a British serjeant-at-law and Liberal Party politician.

He went to Jamaica after his marriage to Rachel Salaman in 1843 and practised law briefly at Spanish Town until returning to England later in 1843 for his wife's health.

He became successful on the Northern Circuit, and in the superior courts in London and in 1864 he was created a serjeant-at-law.

[1] Simon was elected as MP for Dewsbury in 1868 and held the seat until he retired through ill health in 1888.

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