Jan Samuel Timmerman Thijssen (1783 – 15 January 1823) was a Dutch trader who served as Governor of Malacca from 1818 to 1823.
Jan Samuel Timmerman Thijssen was born in 1783[1] and became a leading Dutch merchant.
Whilst in the Dutch East Indies he became a friend of Thomas Stamford Raffles, who was governor during the British occupation of Java from 1811 to 1816.
The Dutch were strongly opposed to the establishment of the new settlement by Raffles in Singapore in 1819[4] and, despite the friendship between the two men, Thijssen, during his governorship, threatened to send troops to capture the island.
An English translation of his speech was printed in the newspaper of the London Missionary Society published by British missionaries William Milne and Robert Morrison in January 1820 who were also advocating its abolition.