| Fort Hammenhiel | |
|---|---|
| Jaffna Peninsula, Sri Lanka | |
 Fort Hammenhiel seen from Karainagar | |
  Fort Hammenhiel | |
| Coordinates | 9°42′42″N 79°50′53″E / 9.711696°N 79.848006°E |
| Type | Defence fort |
| Site information | |
| Controlled by | Sri Lankan Navy |
| Condition | Good |
| Site history | |
| Built | 1618 |
| Built by | Portuguese and Dutch |
| Materials | Granite Stones and coral |
Fort Hammenhiel (Tamil: அம்மன்னீல் கோட்டை, romanized: Am'maṉṉīl Kōṭṭai; Sinhala: හැමන්හිල් බලකොටුව, romanized: Hæminanhil Balakotuwa) is a fort built around a small island between the islands of Kayts and Karaitivu of Jaffna Peninsula in Northern Sri Lanka.