I15 may refer to:
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Interstate 15
Interstate 15 (I-15) is a major Interstate Highway in the Western United States, running through Southern California and the Intermountain West. I-15 begins near the Mexican border in San Diego County and stretches north to Alberta, Ca ...
, a north–south Interstate Highway in the United States of America
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Polikarpov I-15, a Soviet fighter aircraft
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I15 (band), a band
* , of the Imperial Japanese Navy
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Älvsborg Regiment
The Älvsborg Regiment (), designation I 15 and I 15/Fo 34, was a Swedish Army infantry regiment that traces its origins back 1624. It was disbanded in 1998. The regiment's soldiers were originally recruited from the provinces of Västergötland, ...
(I 15) a former Swedish Army infantry regiment
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