The Boys' Brigade in Singapore is a youth uniformed group and part of the global Boys' Brigade movement which has been present in Singapore since 1930. It currently consists of over 700 officers and 6,300 Boys in over 116 companies. The current Brigade President is Patrick Koh Ley Boon and the Honorary President is Lieutenant-General (Ret) Winston Choo, the former Chief of Defence Force of the Singapore Armed Forces.

The Boys' Brigade (BB) is an international interdenominational Christian youth organisation, conceived by the Scottish businessman Sir William Alexander Smith to combine drill and fun activities with Christian values. Following its inception in Glasgow in 1883 the BB quickly spread across the United Kingdom, becoming a worldwide organisation by the early 1890s. As of 2018, the Boys' Brigade claimed 750,000 members in 60 countries.