Se'i or sei is a typical bacon from Kupang, Timor, East Nusa Tenggara. It is a type of smoked meat utilizing a mixture of milk, salt and spices which provides a unique taste unlike any bacon. This dish is easily found in restaurants and warung in Timor. Se'i usually made from pork or beef. In Kupang, people served se'i with sambal lu'at and jagung bose.
The name of Se'i derives from the local language that mean "smoked meat".
This dish is served by most hereditary in East Nusa Tenggara province, the food is actually made from Timorese deer (Cervus timorensis). But, since Timorese deer became extinct now, beef and pork became the main ingredients of Se'i.