The Rusenski Lom (Bulgarian: Русенски Лом [ˈrusɛnski ˈɫɔm]) is a river in northeastern Bulgaria, the last major right tributary of the Danube.

[1] Both rivers primarily run northwestwards, with the Beli Lom going west at Senovo and the Cherni Lom flowing northeast after Shirokovo, as the two rivers get closer to merge east of Ivanovo.

The Rusenski Lom empties into the Danube at the city of Ruse, which gives the river its name.

The total length from the source of the Beli Lom is 196.9 kilometres (122.3 mi).

The altitude of the mouth is 18 metres (59 ft) above sea level.