IRL
IRL is most widely recognized as internet slang for "in real life". It also serves as an acronym for an Irish investment fund, a computing language, an academic imaging lab, and a racing league.
Miscellaneous
The Icky Racing League
Irrevelent Retirement League
Impotent Racers League
International Requirement List
is In Real Life
Community
Governmental
Intermediate Range Lander
Initiating Reference Letter
Interface Requirement List
Institute on Religious Life
Academic & Science
Imaging Research Laboratory
Internet Research Lab
Industrial Research Limited
Industrial Research Ltd
Computing
Internet
Business
Irish Investment Fund, Inc.
India Resources Ltd
Minera IRL Limited (de-listed)
Interscape Records Ltd
Investment Readiness Level
Independent Records Ltd