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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  • Administrative assistant

    Ajit and Sons Transport Inc.

    Mississauga, ON

    • From $37.5 CAD / hour
    • Full-time
    • On-site
  • Administrative assistant

    LOTEY IMMIGRATION ASSOCIATES

    Brampton, ON

    • $18 to $20 CAD / hour
    • Full-time
    • On-site
  • Administrative assistant

    Gymnastics Mississauga

    Mississauga, ON

    • From $19 CAD / hour
    • Part-time
    • On-site
  • Administrative assistant - office

    R Thind Law Professional Corporation

    Mississauga, ON

    • From $37 CAD / hour
    • Full-time
    • On-site
  • Administrative Assistant I - Neuromuscular/Neurology

    University Health Network

    Toronto, ON

    • Full-time

    The Medical Administrative Assistant I provides a broad range of administrative and clerical support to physicians and other healthcare professionals in a fast-paced healthcare environment.…

  • Administrative assistant - office

    Amicus Immigration Consultants Canada Inc

    Mississauga, ON

    • From $37.1 CAD / hour
    • Full-time
    • On-site
  • Administrative Assistant

    RBC

    Toronto, ON

    • Full-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, Nursing Administration

    Sinai Health

    Toronto, ON

    The Administrative Assistant is an integral member of the Community Partnerships and Cancer and Palliative Program Performance portfolio, supporting the Senior Director and other team…

  • Corporate Receptionist & Administrative Assistant

    Recrute Action

    Toronto, ON

    • Contract

    2+ years of experience in a Receptionist, Front Desk, Administrative Assistant, Office Coordinator

  • Bookkeeper / Administrative Assistant

    The ML Group

    Toronto, ON

    • Full-time

    ML Group is looking for an experienced and dependable Bookkeeper / Administrative Assistant to support the accounting and administrative operations of five related companies.

  • Audit Admin Assistant - Assurance

    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…

  • Administrative Assistant

    Welch LLP

    Toronto, ON

    • Full-time

    Please note this role is fully-on site (5 days per week in our downtown Toronto)

  • Administrative Assistant

    Nestle Operational Services Worldwide SA

    Toronto, ON

    As an Administrative Assistant, you will provide comprehensive support to the BEO of Nestle Professional and Vice President, IT & Digital and their leadership teams. This position requires…

  • Administrative assistant

    Innovative Response Marketing Inc.

    Mississauga, ON

    • $20 to $21 CAD / hour
    • Full-time
    • On-site

    Our ideal candidate must have excellent computer knowledge against a broad platform of software applications and outstanding communication skills

  • Administrative Assistant, Sustainable Energies Group (6-month contract)

    CPP Investments | Investissements RPC

    Toronto, ON

    • Full-time

    As an Administrative Assistant, Sustainable Energies Group, you will provide day-to-day support to investment professionals across Toronto and New York. You will manage complex calendars…

  • Administrative Assistant, People and Culture - Bilingual (EN/FR)

    Miller Thomson LLP

    Toronto, ON

    • Full-time

    We are seeking a Bilingual Administrative Assistant, People and Culture to join the team in our Toronto Office.

  • Administrative Assistant, People and Culture - Bilingual (EN/FR)

    Miller Thomson

    Toronto, ON

    We are seeking a Bilingual Administrative Assistant, People and Culture to join the team in our Toronto Office.

  • Administrative Assistant - Real Estate Debt

    QuadReal Property Group

    Toronto, ON

    • Full-time

    Analytical – must have strong numerical skills and be detail-oriented with a keen focus on producing accurate and high caliber work

  • Administrative Assistant I - Ophthalmology Office

    University Health Network

    Toronto, ON

    • Part-time

    The Administrative Assistant I, Medical is responsible for providing administrative and reception support within the Ophthalmology Program at the University Health Network. This role…

  • Administrative Assistant, Food & Beverage

    MLSE (Maple Leaf Sports & Entertainment Partnership)

    Toronto, ON

    • Part-time

    Must be available to work Monday to Friday, including daytime and occasional evening shifts based on business needs

  • Administrative Assistant - Real Estate Debt

    QuadReal Property Group

    Toronto, ON

    • Full-time

    Analytical – must have strong numerical skills and be detail-oriented with a keen focus on producing accurate and high caliber work

  • Administrative Assistant - Disability and Delinquency

    Carpenters’ Regional Council

    Woodbridge, ON

    • Full-time

    Job Title: Administrative Assistant - Disability and Delinquency

  • Administrative Assistant

    Hays

    Brampton, ON

    • $19 to $20 CAD / hour
    • Contract

    Previous administrative or clerical experience.

  • Administrative Assistant

    Talent Acquisition - Achev

    Mississauga, ON

    The Administrative Assistant will perform administrative duties including; scheduling, writing correspondence, addressing phone or email requests, creating reports and presentations,…

  • Administrative Assistant, Water

    R.V. Anderson Associates Limited

    Toronto, ON

    • Full-time

    In office 5 days per week for RVA core hours - 8am to 5pm · Switchboard morning shift availability required

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