Matochina (Bulgarian: Маточина, "lemon balm") is a small village in southeastern Bulgaria, part of Svilengrad municipality, Haskovo Province.

Matochina has existed since at least 1664, when Ottoman sultan Mehmed IV was reported to have hunted near the abandoned fortress and the village located below it.

It was renamed to Matochina in 1934 due to the abundance of the Mediterranean herb lemon balm (Melissa officinalis) in the surrounding area.

The Matochina Fortress (Маточинска крепост, Matochinska krepost), also known as Bukelon (Букелон), lies on a plateau to the northeast of the village itself.

A cross-shaped brick monogram to the side of the entrance indicates that the fortress may have been reconstructed by Tsar Michael Shishman of Bulgaria (1323–1330).