How to Say “Police” in Welsh – Heddlu

heddlu - police

There are two possible ways to say “police” in Welsh: heddlu and plismyn.

The word heddlu is made up of two parts: hedd (meaning “peace“) and llu (meaning “a large number of people“) whereas the word plismyn is the plural of plismon (policeman) and derives from the English.

Cafodd yr heddlu eu galw i ardal Llanrwst.

The police were called to the Llanrwst area.


The four police forces (heddluoedd) in Wales are as follows:

  • Heddlu Dyfed-Powys = Dyfed-Powys Police
  • Heddlu Gwent = Gwent Police
  • Heddlu Gogledd Cymru = North Wales Police
  • Heddlu De Cymru = South Wales Police

As we saw above, an individual policeman is called a plismon or alternatively heddwas. The respective feminine equivalents are plismones and heddferch and the plurals are plismyn and heddweision.

Below are some important Welsh terms related to the police:

  • gorsaf heddlu = police station
  • ci heddlu / ci plismon = police dog
  • arolygydd yr heddlu = police inspector
  • heddlu cudd = secret police
  • gwladwriaeth heddlu = police state
  • heddlu cudd = secret police
  • heddlu marchogol = mounted police

The verb to police or patrol is very easy to remember as it sounds just like the English: plismona.

Mae’r heddwas yn plismona strydoedd trefi gogledd Cymru.

The policeman is patrolling the streets of towns in North Wales.


Police in hi-visibility jackets policing crowd control at a UK event

About The Author

Heather is passionate about everything language-related. Born and raised in Toronto, Canada, she holds a TEFL certification from Aberystwyth University and a Bachelor's degree in Linguistics from the University of Western Ontario. Along with her native English, she speaks Italian, Welsh, and a smattering of Japanese and French.