Administrative assistant jobs in Mississauga, ON and nearby (315 jobs)

Administrative assistant jobs within 25 km of Mississauga, ON, Canada. Nearby towns and cities are included. Distances are straight-line, not driving distances.

Hiring at a glance

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315
Employers
194

Advertised starting pay

Average starting payCAD / hour
$27.75Across 44 listings
Average starting payCAD / year
$53,858Across 34 listings

Employer-advertised starting pay, not employee salaries. Currencies and pay periods stay separate.

Where work happens

Remote
0%0 listings
Hybrid
24%76 listings
On-site
76%239 listings

Employers hiring include University Health Network (24), Quantum Management Services Ltd. (12), Doane Grant Thornton LLP (6).

Sources & calculation notes

These figures describe the listings on this role page at the date shown, not the whole job market. Listings can change.

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Hybrid and on-site classifications may be inferred from descriptions. Check the original ad. How we count

About these jobs

Before you apply

Compare the office software, language skills and clerical experience requested in each ad. Job Bank lists secondary school and administrative training or previous clerical experience as typical requirements. Individual employers set their own criteria. Job Bank / Guichet-Emplois.

Guidance reviewed on September 16, 2026.

Based on the dated count above. Listings can change. How we count

Administrative assistant jobs in Mississauga, ON and nearby

Within 25 km

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  • ScotiaMcLeod Administrative Assistant - Toronto

    Scotiabank

    Toronto, ON

    As an Administrative Assistant, you will be responsible for providing administrative support to one or more Advisors and their teams.

  • Administrative Assistant

    Royal Bank of Canada

    Toronto, ON

    • Part-time

    …individual to join our leading wealth management firm as an Administrative Assistant. By providing ongoing, exceptional service and support to our clients and our Advisor team, you will…

  • Administrative Assistant

    RBC

    Toronto, ON

    • Part-time

    …individual to join our leading wealth management firm as an Administrative Assistant. By providing ongoing, exceptional service and support to our clients and our Advisor team, you will…

  • Administrative Assistant

    RBC Dominion Securities

    Toronto, ON

    • Part-time

    …individual to join our leading wealth management firm as an Administrative Assistant. By providing ongoing, exceptional service and support to our clients and our Advisor team, you will…

  • Administrative Assistant

    Runnymede Healthcare Centre

    Toronto, ON

    • $63,010.35 to $73,713.9 CAD / year
    • Full-time

    The Administrative Assistant plays a key role in supporting the leadership team by providing high-level, professional administrative assistance. This position is responsible for managing a…

  • Administrative Assistant II, Medical

    University Health Network

    Toronto, ON

    • Part-time

    The Administrative Assistant II exercises judgment and independence in the performance of administrative activities, the principal responsibilities include: utilizing knowledge of medical…

  • Administrative Assistant II, Medical

    University Health Network

    Toronto, ON

    • Contract

    The MEDICAL ADMINISTRATIVE ASSISTANT II exercises considerable judgment/independence and utilizes knowledge of medical terminology/moderately advanced functions to provide administrative…

  • Administrative Assistant

    Compass Group Canada

    Mississauga, ON

    • Full-time

    Now, If You Were To Come On Board As Our Administrative Assistant, We’d Ask You To Do The Following For Us

  • Administrative Assistant II, General

    University Health Network

    Toronto, ON

    • Full-time

    The Administrative Assistant II will work closely within a multidisciplinary team to support patients requiring palliative care. This role will primarily support a team of physicians with…

  • Administrative Assistant / Office Administrator - Bank/Finance

    Collabera

    Toronto, ON

    • $19 to $20 CAD / hour
    • Contract

    1–4 years of administrative/customer service-related experience.

  • Administrative Assistant

    HR Associates

    Toronto, ON

    • $30 to $33 CAD / hour
    • Temporary

    …Ontario. We specialize in placing interim professionals and administrative resources within the public, broader public, and not-for-profit sectors. Our consultants bring deep domain…

  • Billing Administrative Assistant

    Gowling WLG

    Toronto, ON

    • $55,000 to $75,000 CAD / year
    • Full-time

    The Toronto office is currently recruiting a Billing Administrative Assistant to coordinate and process all billing-related functions for two to three professionals in the IP (Trademark)…

  • Administrative Assistant, Real Estate

    HOOPP (Healthcare of Ontario Pension Plan)

    Toronto, ON

    • $58,000 to $91,000 CAD / year
    • Full-time

    The Administrative Assistant, Real Estate is a key member of the Real Estate team and is primarily responsible for providing administrative support to enable the efficient and seamless…

  • Project Administrative Assistant

    Open Systems Technologies

    Mississauga, ON

    • Contract

    Compliance, Licenses & Administrative Tracking:

  • Audit Administrative Assistant - Assurance - Toronto

    EY

    Toronto, ON

    As an Audit Administrative Assistant, you will be a professional member of the EY Assurance team. Together with our substantial investments in technology, knowledge, and learning resources…

  • Human Resources Administrator

    Amico

    Mississauga, ON

    • Full-time
  • Admin Assistant CM 4M Medicine

    St. Joseph's Health Centre, Toronto

    Toronto, ON

    • Full-time

    Minimum of 2 years of progressively responsible secretarial/administrative experience, preferably in a hospital setting, is an asset

  • Administrative Assistant

    PwC Canada

    Toronto, ON

    • Full-time

    Reporting to the Admin Services Manager, the Admin Assistant actively supports the day-to-day business activities of stakeholders in a fast-paced, multitasking environment, often working…

  • Administrative Assistant

    PwC

    Toronto, ON

    • Full-time

    Reporting to the Admin Services Manager, the Admin Assistant actively supports the day-to-day business activities of stakeholders in a fast-paced, multitasking environment, often working…

  • Administrative Assistant

    Gotcare

    Toronto, ON

    • Full-time

    Gotcare is seeking a highly organized and detail-oriented Administrative Support professional to join our growing team. This role is essential to ensuring smooth and efficient company…

  • Administrative Assistant

    Toronto Metropolitan University

    Toronto, ON

    • Temporary

    The Administrative Assistant provides administrative support to the Executive Director, Marketing. Promotes and facilitates the effective operation of the office of the Executive Director…

  • HR Coordinator and Administrative Assistant ( 12 month contract)

    CPSO

    Toronto, ON

    • Full-time

    This position offers a hybrid remote work arrangement, with mandatory in-office attendance one day per week and more as required

  • Administrative Assistant

    Canada Post - Postes Canada

    Toronto, ON

    The Administrative Assistant take leadership of all vital office functions, including the coordination of priority actions, correspondence control, inter-departmental liaison and the…

  • Administrative Assistant

    BJRC Recruiting

    Toronto, ON

    • Part-time

    Midtown Toronto, on-site (3 days per week)

  • Administrative Assistant

    Brand Vision

    Toronto, ON

    • $50,000 to $55,000 CAD / year
    • Full-time

    We are looking for a proactive and organized Administrative Assistant to support our sales team and day-to-day administrative activities.

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