Tatkavaklı (formerly: Kavaklı) is a neighbourhood of the municipality and district of Mustafakemalpaşa, Bursa Province, Turkey. Its population is 5,179 (2022). Before the 2013 reorganisation, it was a town (belde).

Tatkavaklı is on Turkish state road D.573 which connects Bursa to İzmir. Its distance to Mustafakemalpaşa is 4 kilometres (2.5 mi) and to Bursa is 89 kilometres (55 mi).

The settlement was founded by a group of families migrated from Kangal (Sivas Province, east of Central Anatolia) in the early 16th century. The first building of the settlement was a mosque commissioned by Sipahi Kapucu a tımarlı sipahi (fief holder) of the Ottoman Empire in 1505. The earlier name of the settlement was Kavaklı ("with poplar") . But in 1973 when the settlement was declared a seat of township, the prefix Tat was added referring to a factory around.

The economy of the town depends on agriculture. There is a tomato paste factory and a dairy products factory around the town.