Attanayake is a Sinhalese surname. Notable people with the surname include:
- Lahiru Attanayake (born 1999), Sri Lankan cricketer
- Manike Attanayake (born 1947), Sri Lankan actress
- Senarath Attanayake (1966–2017), Sri Lankan politician
- Tissa Attanayake (born 1961), Sri Lankan politician
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