The 209th Infantry Brigade (209 Bde) was a Home Defence formation of the British Army during the Second World War.

The brigade was formed for service in the United Kingdom on 13 October 1940 by No 9 Infantry Training Group in the South West Area of Southern Command.

Under the name of 209th Independent Infantry Brigade (Home) it was initially composed of newly raised battalions of the Buffs (Royal East Kent Regiment).

[1][6] The 77th was a Reserve Division, later designated a Holding Division with the role of sorting, retraining and temporarily holding personnel before they were reassigned to other units.

All these formations remained within the United Kingdom throughout the war.