In most cases, yes. Canadian citizens are native English speakers, but Home Affairs still requires proof of English proficiency for most skilled migration visas. You can take tests such as IELTS, PTE Academic, TOEFL iBT, or OET. A high score can earn additional SkillSelect points. Minimum requirements vary by visa subclass — for example, GSM visas typically require at least Competent English (IELTS 6.0 in each band or equivalent). Some exemptions apply for passport holders from Canada, but these may not grant points towards your score.