Taavetti (Swedish: Davidstad) is a village and the administrative center of the Luumäki municipality in the South Karelia region of southeastern Finland. It has a population of about 2,084 and a small commercial center. The village lies along Highway 6 between Lappeenranta and Kouvola, and its center also runs on Highway 26 towards Hamina. The distance from Taavetti to Lappeenranta, the nearest city, is about 40 kilometres (25 mi).
The locality developed around Taavetti Fortress, whose construction began in the 1770s on the orders of Catherine the Great of Russia, after Russia gained control of the area through the Peace of Turku in 1743. The fortress was named after Saint David of Thessaloniki and was extended in the 1790s as part of defensive lines protecting Saint Petersburg. It became redundant after the Finnish War ended in 1809, when all of Finland became part of Russia, and in the late 19th century it was reused as a training ground for a Finnish sniper battalion. The fortress was restored in the early 2000s and opened to the public; its grounds, walls and bastions can be explored on foot. A white town hall stands next to it.
The Riihimäki–Saint Petersburg railway, completed in 1913, had a station in Taavetti; the station closed in 2006 due to limited usage. The nearest airport is Lappeenranta Airport, 37 km east, and the nearest train stations are at Kouvola and Lappeenranta.