冰屋（Igloo，因纽特语：iglu/ ᐃᒡᓗ，意为“房屋”），又译雪屋或音译为伊格鲁，是一种由雪块构造而成的居所，通常都有一个圆顶。冰屋常常会被人们与居住在加拿大辽阔的北部地区的原住民因纽特人联系起来，因为因纽特猎人们正是把冰屋作为他们在漫长的严冬中狩猎期间的临时住所。

用来建造冰屋的雪必须有足够大的建筑学强度，能够切割成块状，并且能够按一定的条件堆积起来。最佳的建筑材料是被风吹制而成的雪，这样的雪能够紧密地堆积并通过冰晶互相粘接。冰屋顶部一般开有一个通风口，位置比圆顶最高点略低些。有时候，在出口还会挖一条短地道，这样一来，不仅可以抵御狂风，还可以在开门的时候大大减少屋内热量的散失。由于雪是极好的绝缘和绝热材料，在住人用的冰屋中，居住条件相当舒适。

An igloo (Inuit language: iglu, Inuktitut syllabics ᐃᒡᓗ [iɣˈlu] (plural: igluit ᐃᒡᓗᐃᑦ [iɣluˈit])), also known as a snow house or snow hut, is a type of shelter built of snow, typically built when the snow can be easily compacted.

Although igloos are stereotypically associated with all Inuit, they were traditionally associated with people of Canada's Central Arctic and Greenland's Thule area. Other Inuit people tended to use snow to insulate their houses, which were constructed from whalebone and hides. Snow is used because the air pockets trapped in it make it an insulator. On the outside, temperatures may be as low as −45 °C (−49 °F), but on the inside the temperature may range from −7 °C (19 °F) to 16 °C (61 °F) when warmed by body heat alone.