As you want here I am giving below IELTS test center address which located in or nearby Gatineau:

Algonquin College - Ottawa
Registration address
Registration address Language Institute IELTS Test Centre, Room B453 1385 Woodroffe Avenue
Tel: +61 3727 4723 ext 2912
Email: ielts@algonquincollege.com

Test fee: CAD 299
Ottawa, ON, Canada
6 km
British Council - Canada College Ottawa
Registration address
Registration address 1118 Sainte-Catherine West - 4th Floor
Tel: +1 (514) 994-7974
Email: ielts@collegecanada.com

Test fee: CAD 309
Ottawa, ON, Canada
6 km
British Council - Saint Paul University
Registration address
Registration address 455 Spadina Ave Unit 301
Tel: +1 416 946 3942
Email: info@myetc.ca

Test fee: CAD 290 (+ taxes)
Ottawa, ON, Canada
6 km
University of Ottawa
Registration address
Registration address Room 2A312, 299 Doon Valley Drive Doon Campus
Tel: +1 5197483516
Email: ieltshelp@conestogac.on.ca

Test fee: CAD 309
Ottawa, ON, Canada
6 km
Algonquin College Language Institute - Ottawa
Registration address
Registration address Language Institute IELTS Test Centre, Room B453 1385 Woodroffe Avenue
Tel: +61 3727 4723 ext 2912
Email: ielts@algonquincollege.com

Sainte-Anne-de-Bellevue, QC, Canada
137 km
British Council - John Abbott College
Registration address
Registration address 455 Spadina Ave Unit 301
Tel: +1 416 946 3942
Email: info@myetc.ca

Test fee: CAD 290 (+ taxes)
Kingston, ON, Canada
152 km
St. Lawrence College
Registration address
100 Portsmouth Avenue, Kingston, ON, K7L 5A6
Kingston, ON, Canada
152 km
Algonquin College - Kingston
Registration address
Language Institute IELTS Test Centre, Room B453 1385 Woodroffe Avenue
Tel: +61 3727 4723 ext 2912
Email: ielts@algonquincollege.com

Test fee: CAD 319
Montreal, QC, Canada
166 km
Algonquin College - Montreal
Registration address
Language Institute IELTS Test Centre, Room B453 1385 Woodroffe Avenue
Tel: +61 3727 4723 ext 2912
Email: ielts@algonquincollege.com

Test fee: CAD 299
Montreal, QC, Canada
166 km
English Testing Canada
Registration address
John Abbott College, (all fees are subject to 13 percent HST - HST # 833405731RT0001), 21275 Lakeshore Dr, Sainte-Anne-de-Bellevue, Montreal West Island, Quebec, H9X 3L9
Tel: +1 (514) 848-3600

Montreal, QC, Canada
166 km
Canada College Montreal
Registration address
1118 Rue Ste-Catherine Ouest #403, Montreal, Quebec, H3B1H5
Tel: +1 (514) 994-7974
Email: ielts@collegecanada.com

Test fee: CAD 309
Montreal, QC, Canada
166 km
Concordia IELTS test Centre
Registration address
1600 Ste-Catherine West, First Floor FB-117, Montreal, Quebec, H3G 1M8
Tel: +1 (514) 848-3600
Email: cce@concordia.ca