Los

LOS, or Los, or LoS may refer to:

==Science and technology== Length of stay, the duration of a single episode of hospitalisation Level of service, a measure used by traffic engineers Level of significance, a measure of statistical significance Line-of-sight (disambiguation) LineageOS, a free and open-source operating system for smartphones and tablet computers Loss of signal Fading End of pass (spaceflight) Loss of significance, undesirable effect in calculations using floating-point arithmetic