Trade unions
P
| Full Name | Short Name | Notes |
|---|---|---|
| Pawnbrokers' Assistants Approved Society | PAAS | |
| Postal Clerks' Association | PCA | |
| Postmen's Federation | PF | Founded 1891. Merged with Postal and Telegraph Clerks' Association and the Fawcett Association in 1919 to form Union of Post Office Workers. |
| Post Office Engineering Union | POEU | |
| Pottery Workers Society | PWS | |
| Power Loom Carpet Weavers and Textile Workers Union | PLCWTWU | |
| Primary School Teachers Association | PSTA | |
| Prison Officers Association | POA | |
| Professional Footballers Association | PFA | |
| Public and Commercial Services Union | PCS | |
| Public Works and Constructional Operatives' Union | PWCOU |