Francis Johnson (c. 1795/96 – 29 January 1876) was a British linguist.
He taught Sanskrit, Telugu and Bengali at the East India Company College between 1824 and 1855.
He compiled a comprehensive Persian, Arabic, and English dictionary, which he published in 1852 and which is the main thing he is remembered for.
The dictionary presented Persian and Arabic words and translated them to English.
A nonconformist, he funded the construction in 1829 of a Congregationalist chapel at Hertford Heath, and its subsequent operation.