The Anglo-Dutch Slave Trade Treaty (Dutch: Brits-Nederlands verdrag ter wering van de slavenhandel) was a treaty signed between the United Kingdom and the Kingdom of the Netherlands signed on 4 May 1818, aimed at preventing slave trade carried out through Dutch vessels.

Among other things, the treaty established two Mixed Commission Courts, one with a seat in Freetown, Sierra Leone and another in Paramaribo, Suriname, which had the power to sentence slavers.

By abolishing slave trade, William I hoped to regain the Dutch colonies now under British control.

[3] The Mixed Commission Court in Freetown sentenced in total 22 Dutch vessels during its existence between 1819 and 1862.

[4] The Mixed Commission Court in Paramaribo sentenced only one vessel during its existence between 1819 and 1845, namely, the Nueve of Snauw in 1823.