黑棕部队（英语：Black and Tans，爱尔兰语：Dúchrónaigh），指皇家爱尔兰警队后备队（英语：Royal Irish Constabulary Reserve Force，爱尔兰语：Fórsa Chúltaca Chonstáblacht Ríoga na hÉireann），是皇家爱尔兰警队部署的两支准军事部队之一，用于镇压爱尔兰共和军在爱尔兰发动的革命。

但是应注意到「黑棕部队」常常被用来同时称呼皇家爱尔兰警队后备队和在英爱战争中成立的另一支部队—皇家爱尔兰警队预备队。

The Black and Tans (Irish:Dúchrónaigh), officially the Royal Irish Constabulary Special Reserve, was a force of Temporary Constables recruited to assist the Royal Irish Constabulary (RIC) during the Irish War of Independence. The force was the brainchild of Winston Churchill, then British Secretary of State for War. Recruitment began in Great Britain in late 1919. Thousands, many of them British Army veterans of World War I, answered the British government's call for recruits. Most of the recruits came from Britain, although it also had some members from Ireland. Their role was to help the RIC maintain control and fight the Irish Republican Army (IRA), the army of the Irish Republic. The nickname "Black and Tans" arose from the colours of the improvised uniforms they initially wore, composed of mixed khaki British Army and rifle green RIC uniform parts. The Black and Tans became infamous for their attacks on civilians and civilian property.