Veronica turrilliana (Bulgarian: Търилово великденче) is a species of speedwell in the family Plantaginaceae, endemic to the Strandzha mountain range in south-eastern Bulgaria and north-western Turkey.

Veronica turrilliana has a vertical rhizome, the stems are straight, branched, reaching height of 8 to 35 cm.

The flowers are in loose grape-shaped raceme; the petals are purple-blue, with a light yellow ring in the middle.

[3] The plant grows on dry limestone rocks and cracks in the Strandzha mountain range in the south-eastern part of the Balkan Peninsula in Bulgaria and Turkey, at an altitude of about 200 m. It forms fragmented populations made up of a few scattered individuals.

In Bulgaria Veronica turrilliana is spread in Strandzha Nature Park, where it inhabits the Kovach locality south of the village of Zvezdets, Petrova Niva historic area, the zone around the villages of Stoilovo and Slivarovo, the springs of the Mladezhka river, a tributary of the Veleka, as well as Sredoka and Vitanovo Reserves.