The National Union of Docks, Wharves and Shipping Staffs (NUDWSS) was a trade union representing administrative staff working in shipping and related industries in the United Kingdom.
The union was founded in 1909 as the Port of London Staff Association, as a replacement for the recently dissolved London and India Docks Staff Association.
[1] In 1917, the organisation decided to register as an independent trade union for the first time, and renamed itself as the Port of London Docks and Wharves Staff Association.
Charles Ammon became its secretary in 1918, and Arthur Creech Jones was appointed as its organiser.
Membership grew to 4,381 by 1922, when it became a founding constituent of the Transport and General Workers' Union.