警察局副局长（英语：Deputy chief constable，简称：DCC），是英国各执法机构内第二高的职位（伦敦警察厅及伦敦市警察除外，同等的职位分别是副助理总监（deputy assistant commissioner）和助理总监（assistant commissioner），但臂章基本相同），权力在助理警察局长（assistant chief constable）之上。英国铁路警察、英国国防部警察、英国民用核能警察和曼岛警察都各有一名警察局副局长。直到2006年，各机构都只可以聘请一名警察局副局长。此限制随《警察与司法法例》（Police and Justice Act 2006）的修改已经得到放宽。苏格兰警方是迄今惟一充分利用这修改的机构，其编制于2013年增加至四名。警察局副局长的臂章为一枚巴斯勋章和一枚双杖花环。

Deputy chief constable (DCC) is the second highest rank in all territorial police forces in the United Kingdom (except the Metropolitan Police, in which the equivalent rank is deputy assistant commissioner, and City of London Police, in which the equivalent rank is assistant commissioner, both of which wear the same insignia as a DCC). The British Transport Police, Ministry of Defence Police, Civil Nuclear Constabulary, and the Isle of Man Constabulary each also has a DCC.