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.
Counted
Hiring at a glance
View jobs- Open jobs
- 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
Added
Administrative Assistant II
University Health Network
The MEDICAL ADMINISTRATIVE ASSISTANT II exercises considerable judgment/independence and utilizes knowledge of medical terminology/moderately advanced functions to provide secretarial and…
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Administrative Assistant (Fundraising)
Quantum Management Services Ltd.
Position: Administrative Assistant (Fundraising)
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Bilingual Administrative Assistant
Experis Canada
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Administrative Assistant
Halton Healthcare
Hours: Monday to Friday, 7.5 hour day shifts; 0830 - 1630 (Hours are subject to change based on operational needs)
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Administrative Assistant II, Medical
University Health Network
The Administrative Assistant II exercises judgment and independence in the performance of administrative activities, the principal responsibilities include: utilizing knowledge of medical…
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Administrative Assistant III
University Health Network
Administrative Assistant III will provide high-level administrative and secretarial support to the Clinical Director overseeing Emergency Department (ED), General Internal Medicine (GIM),…
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Administrative Assistant
Morguard
The Administrative Assistant is accountable to the Manager or the Director of a function, department or office for ensuring that all daily administrative and other function-specific support…
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Can Administrative Assistant II \ Underwriting Assistant
Aon Corporation
Must have strong computer skills and be proficient with the Microsoft Office Package
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Administrative Assistant
Lifemark Health Group
We are looking for an experienced Administrative Assistant to support our leadership team. This is a busy, hands on role for someone who is exceptionally organized, anticipates what needs…
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Administrative Assistant
Guardian Capital Group
We are looking for an Administrative Assistant to provide administrative and strategic support to our Institutional Investment leaders at our head office in downtown Toronto. This role will…
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Administrative Assistant - Slaight Centre Research
CAMH
CAMH is currently seeking a full-time, contract (12 months) Administrative Assistant to provide senior administrative support across the Azrieli Adult Neurodevelopmental Centre and the…
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Administrative Assistant
Quantum Management Services Ltd.
Our government-based client in downtown Toronto is seeking an organized and detail-oriented Administrative Assistant to provide administrative support, coordinate daily office activities,…
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Administrative Assistant
CIBC
You need to be legally eligible to work at the location(s) specified above and, where applicable, must have a valid work or study permit
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Administrative Assistant
Experis Canada
Provide reception, mailroom, courier, administrative, and print center support while ensuring smooth day-to-day office operations.
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Office administrative assistant
Allingham Machining Inc.
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Administrative Assistant (Fundraising)
Quantum Management Services Ltd.
Position: Administrative Assistant (Fundraising)
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office administrative assistant
Allingham Machining Inc.
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administrative assistant
Sound Insurance
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Senior Administrative Assistant
Marsh
All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week
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Administrative Assistant
Plan Group Inc.
Work to support administrative and clerical services for our team
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Senior Administrative Assistant
Marsh McLennan
All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week
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Administrative Assistant
Nestle Operational Services Worldwide SA
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…
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Administrative Assistant (Payroll)
Altis
Our client is seeking a detail-oriented Administrative Assistant to provide essential reporting, data management, and administrative support to a busy payroll team. This is an excellent…
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Administrative Assistant
Deepak1.ca
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Bilingual Administrative Assistant, MT Academy
McCarthy Tétrault LLP
We are recruiting for a Bilingual Administrative Assistant, MT Academy to join our team in our Toronto or Calgary office. The successful candidate must have a minimum of three years of…