Planning a wedding with 150 or more guests can sometimes feel a bit overwhelming, especially when it comes to choosing the right venue. The good news? Ottawa and the surrounding region offer an impressive range of wedding venues that are not only beautiful, but also well-equipped to host large celebrations comfortably. From luxury downtown hotels to rustic countryside estates, here’s a detailed look at some of Ottawa’s top wedding venues for larger guest counts:

Fairmont Château Laurier – Located Downtown Ottawa

Capacity: Up to ~400 guests
Estimated 2026 Cost: $40,000–$60,000+ all-in

One of Ottawa’s most iconic landmarks, the Fairmont Château Laurier is synonymous with classic elegance. Featuring multiple grand ballrooms, soaring ceilings and ornate architectural details, this venue is designed for large, formal weddings. Its prime downtown location offers easy access for guests and stunning photo opportunities overlooking the Rideau Canal and Parliament Hill.

Best suited for: Couples dreaming of a luxury, traditional wedding with a large guest list and full hotel amenities on site. To check out the website, click here.

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Venue TwentyTwo – The Westin Ottawa

Capacity: ~150–200 guests
Estimated 2026 Cost: $30,000–$45,000+

Located on the 22nd floor of The Westin, Venue TwentyTwo offers one of the best views in the city. Floor-to-ceiling windows provide panoramic city and river vistas, making it a standout choice for modern, upscale weddings. The space is sleek, flexible and pairs beautifully with sunset cocktail hours.

Best suited for: Couples wanting a modern, city-chic wedding with dramatic skyline views and a central location. Also includes full hotel amenities on site. To check out the website, click here.

Stonefields Estate – Located in Carleton Place

Capacity: ~100–220 guests
Estimated 2026 Cost: $30,000–$40,000

Stonefields Estate combines rustic charm with a polished service. Set on a picturesque country property, this venue features a restored barn, elegant farmhouse and lush outdoor ceremony spaces. Known for its excellent in-house catering and attentive planning support, it offers a seamless wedding experience.

Best suited for: Couples looking for a rustic-elegant countryside wedding that still feels refined and well-organized. To check out the website, click here.

Strathmere Weddings – North end of Ottawa

Capacity: Up to ~200+ guests
Estimated 2026 Cost: $30,000–$45,000+

Strathmere is a sprawling 200-acre estate offering multiple ceremony and reception options, including a historic lodge and garden-inspired spaces. With overnight accommodations, farm-to-table cuisine and stunning natural scenery, it’s ideal for couples wanting a relaxed yet elevated celebration.

Best suited for: Couples seeking a romantic, nature-focused wedding with flexibility and on-site accommodations for guests. To check out the website, click here.

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Le Belvédère – Located in Wakefield, QC

Capacity: Up to ~200 guests
Estimated 2026 Cost: $15,000–$35,000+

Just a short drive from Ottawa, Le Belvédère offers a breathtaking cliffside setting overlooking the Gatineau Hills. The venue is known for its all-in-one wedding experience, with ceremony, cocktail hour and reception all taking place on site. The scenery alone makes this venue unforgettable.

Best suited for: Couples who want a destination-style wedding close to home with dramatic views and a strong “wow” factor. To check out the website, click here.

Aquatopia Water Garden Conservatory – Located in Carp

Capacity: Up to ~150 guests
Estimated 2026 Cost: $30,000+

Aquatopia is a truly unique option with a lush indoor conservatory filled with tropical plants, waterfalls and glass ceilings. This venue allows couples to enjoy a garden-style wedding year-round without worrying about weather.

Best suited for: Couples looking for a unique, nature-inspired wedding that stands out from traditional venues. To check out the website, click here.

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Lago – Central Waterfront Venue

Capacity: ~150–250 guests 
Estimated 2026 Cost: $25,000–$40,000+

Lago combines waterfront views with a sleek and contemporary design which is perfect for couples wanting a stylish reception location. 

Best suited for: Couples who want a modern, scenic venue with great food and drink options. The venue is in a central location in Ottawa which is perfect for guests that are travelling from a variety of locations. To check out the website, click here.

Orchard View Wedding & Event Centre – Located in Greely

Capacity: ~150–400 guests 
Estimated 2026 Cost: $20,000–$35,000+

This venue mixes natural outdoor ceremony spaces with polished indoor reception areas which are perfect for couples who want flexibility. 

Best suited for: Couples wanting a relaxed yet elegant rural wedding close to Ottawa. To check out the website, click here.

Final Thoughts

When planning a large wedding in Ottawa, capacity is just one piece of the puzzle. Style, location, guest experience and overall budget all play major roles in finding the right fit. Whether you’re envisioning a glamorous ballroom affair, a scenic countryside celebration or a modern urban soirée, Ottawa has a venue that can bring your vision to life; even with a guest list of 150 or more.

Booking early and understanding what’s included in each venue’s pricing structure will help ensure a smooth planning process and a celebration your guests will never forget.