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Conservative Party of Canada head office mailing address

To mail a letter to Conservative Party of Canada, a federal political party, send it to the party's national office at Conservative Party of Canada, Suite 1800, 66 Slater Street, Ottawa, ON K1P 5H1. The Conservative Party of Canada is a federal political party formed in 2003 through the merger of the Canadian Alliance and the Progressive Conservative Party of Canada. It sits on the centre-right and runs candidates in every province and territory. This is the party's publicly published head office — the right address for membership correspondence, policy feedback, and letters to the party. Add your return address if you'd like a reply, and confirm the address on the party's official site before anything time-sensitive.

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Mailing address

Verified September 2026

Conservative Party of Canada — national office

Conservative Party of Canada
Suite 1800
66 Slater Street
Ottawa ON  K1P 5H1

Membership correspondence, policy feedback, mailed donations, and letters to the party. This is the national/head office — not a local candidate's constituency office or riding association.

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Sources

Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.

Key facts

  • This is Conservative Party of Canada's national head-office address, taken from the party's own official site.
  • Conservative Party of Canada is a federal political party founded in 2003.
  • The party lists this Slater Street office as the address for mailing in paper membership forms and cheque donations; general letters to the party can use the same head office.
  • Address a specific team with an attention line (e.g. "Attention: Membership Services") so mail is routed internally.
  • Use it for letters, membership forms, and printed documents — not parcels or gifts.
  • PostPal prints your letter and mails it for you — no printer, envelope, stamps, or post office trip.

How to send your letter

  1. 1

    Decide who your letter is for

    A letter to the head office reaches the party generally. For a specific team — membership, the leader's office, or a policy area — add an attention line such as "Attention: Membership Services" so it's routed faster.

  2. 2

    Write your letter

    Keep it clear and factual, whether it's about policy, joining, or renewing. Include any membership number and your return address so the party can write back. The party lists this Slater Street office as the address for mailing in paper membership forms and cheque donations; general letters to the party can use the same head office.

  3. 3

    Address it to the national office

    First line: Conservative Party of Canada. Next: Suite 1800. Then the street: 66 Slater Street. Then the city line: Ottawa ON K1P 5H1.

  4. 4

    Send it with PostPal

    Write or upload your letter to PostPal with the address above prefilled. We print it, add your return address, and mail it for you — no printer, envelope, stamps, or trip to the post office.

Common questions

What is Conservative Party of Canada's head office mailing address?

Conservative Party of Canada, Suite 1800, 66 Slater Street, Ottawa, ON K1P 5H1. It's the party's publicly published national office — the right address for membership correspondence, policy feedback, and letters to the party. Confirm it on the Conservatives's official site before anything time-sensitive.

Will an MP or the party leader read my letter?

Letters to a national party are opened and sorted by staff, who route them to the relevant team — so your letter is handled, but a personal reply from the leader or an MP isn't guaranteed. A concise letter with your return address and a clear ask gives you the best chance of a response.

Can I mail a membership form or a donation to the Conservatives?

Often, yes — many parties accept mailed membership forms and cheque donations at the head office. The party lists this Slater Street office as the address for mailing in paper membership forms and cheque donations; general letters to the party can use the same head office. Follow the instructions on the party's own join/donate page, and mark the envelope "Attention: Membership Services".

Is this a local candidate or riding association address?

No — this is Conservative Party of Canada's national head office. To reach a specific candidate, MP, or local riding association, contact that office directly; use the head office for party-wide correspondence.

How do I mail the Conservatives a letter without a printer?

Write or upload your letter to PostPal with the address prefilled. We print it, add your return address, and mail it for you — no printer, stamps, or post office trip needed.

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