St Ouen (Jèrriais: Saint Ouën, French: Saint-Ouen) is one of the twelve parishes of Jersey in the Channel Islands.

The parish hosts the northernmost section of its namesake bay, which sweeps from the north to the south of the island.

By Norman times, the parish boundaries were firmly fixed and remain largely unchanged since.

The parish memorial is located in front of the hall, which includes the names of those involved in many interesting and tragic stories.

[7] The parish is a first-level administrative division of the Bailiwick of Jersey, a British Crown dependency.

The Val de la Mare Valley and Reservoir are located in the south of the parish, along its border with St Peter.

Lecq originates from the Norse La Wik, which may have meant 'ship-loading creek' or referred to witches, should the bay have been a centre of sorcery.

Plémont is a headland on the parish's north coast While mont undoubtedly refers to the hill, plé could originate from a number of sources, the most likely being the French plié (folded).

The rest of the population is dispersed in small developed pockets around the rural areas of the parish.

Frank Le Maistre (1910–2002), compiler of the Dictionnaire Jersiais-Français (1966), did much to standardise the St Ouennais dialect of Jèrriais as a literary language.

Edward Le Brocq (1877–1964) wrote a weekly newspaper column from 1946 to 1964 recounting the lives and opinions of two St Ouennais characters, Ph'lip and Merrienne.

The traditional nickname for St Ouennais is Gris Ventres (grey bellies) – a reference to the custom of men from the parish to wear jerseys of undyed wool, which distinguished them from men from other parishes who generally wore blue.

Le Cotte à la Chèvre lies to the east of Grosnez and is a palaeolithic site, possibly 120,000 years old.

The Val de la Mare reservoir is shared with St Peter and was created by Jersey Water in 1962.

The coffin of Sir Philippe de Cateret, who died in the English Civil War in 1643, was found in the church in 1869.

St George's Church is located at La Ville Vautier in the north-west of the parish.

Les Landes is a Government-run primary school, located on La Rue des Cosnets.