Tumba (Greek: Τούμπα, Bulgarian and Macedonian: Тумба) is a peak in the Belasica mountains in the region of Macedonia.

A dome-shaped mountain with steep southern and northern slopes, Tumba is covered with low subalpine vegetation and is made of metamorphic rock.

Tumba is notable as the point where the national borders of Bulgaria, Greece and North Macedonia meet (tripoint).

In Bulgaria, favourable starting points of an ascent are the villages Klyuch, Skrat and Gabrene.

Every August since 2001, an international excursion to the peak is organized under the motto "Balkans Without Borders".