Secker is a surname. Notable people with the surname include:
- Jayne Secker (born 1972), English journalist and newsreader
- Kathy Secker (1945–2015), British broadcaster
- Martin Secker (1882–1978), London publisher
- Patrick Secker (born 1956), Australian politician
- Thomas Secker (1693–1768), Archbishop of Canterbury
- William Secker (? – c.1681), Church of England clergyman and religious writer
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