81 KRH 71 Y (81 mm kranaatinheitin malli 1971 ympäriampuva, '81 mm mortar model 1971, 360-degree traverse') is a light mortar manufactured by Tampella for use by the Finnish Army.

Each Finnish infantry company has a platoon of 81 mm mortars.

It can fire HE-fragmentation, smoke, illumination and practice rounds.

Tampella also manufactured a static installed 81 KRH 71 RT (81 mm kranaatinheitin malli 1971 rannikkotykistö, '81 mm mortar model 1971, coastal artillery') for use in the Finnish coastal artillery fortresses.

[1]: 192 A newer version of the 81 KRH 71 Y with an improved baseplate made by Vammas is called the 81 KRH 96 (81 mm kranaatinheitin malli 1996, '81 mm mortar model 1996').