Willem Jacobszoon Coster
| Willem Jacobsz. Coster | |
|---|---|
| 1st Governor of Dutch Ceylon | |
| In office 13 March – 17 August 1640 | |
| Preceded by | Office established | 
| Succeeded by | Jan Thyszoon Payart | 
| Personal details | |
| Born | Willem Jacobszoon Coster Unknown date, c. 1590 Akersloot, County of Holland, United Dutch Provinces | 
| Died | 21 August 1640 (aged 49–50) Nilgala, Dutch Ceylon | 
| Military service | |
| Allegiance | Dutch East India Company | 
| Rank | Admiral | 
| Wars | Dutch–Portuguese War | 
Willem Jacobszoon Coster (c. 1590 – 21 August 1640) was a Dutch colonial governor who served as the first Governor of Dutch Ceylon from 13 March until 17 August 1640. He was succeeded by Jan Thyszoon Payart.