The pub where Valleyfield meets.

A welcoming atmosphere, generous food and nights that run late. Welcome to O'Sim 21.

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Valleyfield Open Wed–Sat

EST.21VALLEYFIELD

Choose an atmosphere

Right now

It is happening now

The local date and time, down to the second. Check the pub's live announcements.

20:41:14Saturday, September 19, 2026

Sports on site

Come watch the biggest sporting events with us.

A true pub atmosphere, a screen for the big games and the perfect place to experience the match together.

Ask about a group

Every weekend

Weekends with energy

Enjoy the O'Sim 21 atmosphere with our weekend programming and book the virtual golf experience ahead of time.

DJ & live singer

Every weekend, enjoy music, crowd favourites and a lively pub atmosphere.

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Virtual golf

Our virtual golf setup is available by reservation for groups, events and nights out with friends.

Book virtual golf

A local address

Simon Langevin, owner since 2017

Since 2017, Simon Langevin has made O'Sim 21 a local gathering place for good food, drinks, music and good times.

Timeline

What was booked, and what is coming up

Upcoming events are ordered by date and time. At midnight, the day’s event moves into the past; after 3 AM the next day, it is archived while staying in our history.

Upcoming bookings will be announced here.

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Planned reservations

Groups, office dinners and events

For a future reservation or group request, send us your details. We will reply as soon as possible. Same-day reservations are not available: seating is first come, first served.

Inside the pub

See the atmosphere

A selection of pub, dining room and O'Sim 21 atmosphere photos. Follow our Facebook page for the latest updates.

Pub archives

The pub's best memories

Atmosphere photos, flyers and historical O'Sim 21 documents, automatically compressed for fast loading. We publish only selected images and promptly remove any photo that is flagged.

Reviewed selection · removal on request