| LSU | La Sainte Union 
| Others |
| LSU | La Salle University
| Others |
| LSU | La Sierra University
| Others |
| LSU | Lambdasonde Universal
| Others |
| LSU | Lan Service Unit
| Others |
| LSU | Landing Ship Utility
| Others |
| LSU | Language Services Unit
| Others |
| LSU | Large Shop Unit
| Others |
| LSU | Laser Scanner Unit
| Others |
| LSU | Late Sign Ups
| Others |
| LSU | Latino Student Union
| Others |
| LSU | Lavatory Service Unit
| Others |
| LSU | Learning Support Unit
| Others |
| LSU | Lenovo System Update
| Others |
| LSU | Lesbian and Student Union
| Others |
| LSU | Let's Stand United
| Others |
| LSU | Leyte State University
| Others |
| LSU | Life Studies University
| Others |
| LSU | Life Support Umbilical
| Others |
| LSU | Life Support Unit
| Others |
| LSU | Light Scattering Unit
| Others |
| LSU | Limited Sampler Unit
| Others |
| LSU | Limited Switching Usage
| Others |
| LSU | Line Server Unit
| Others |
| LSU | Line State Unknown
| Others |
| LSU | Link State Update
| Others |
| LSU | List Super Users
| Others |
| LSU | Listen, Say, and Use
| Others |
| LSU | Lithuania State University
| Others |
| LSU | Live Sex Update
| Others |
| LSU | Livestock Unit
| Others |
| LSU | Load Source Unit
| Others |
| LSU | Load Store Unit
| Others |
| LSU | Loan Status Update
| Others |
| LSU | Local Support Unit
| Others |
| LSU | Logistics Civil Augmentation Program Support Unit
| Others |
| LSU | Long Sukang, Sarawak, Malaysia
| Others |
| LSU | Louisiana Sports University
| Others |
| LSU | Louisiana State University
| Others |
| LSU | Lousiana State University
| Others |
| LSU | Love Shaq University
| Others |
| LSU | Lucerne Super
| Others |
| LSU | Luxe Super Utility
| Others |
| LSU | Luxury Sedan Ult
| Others |
| LSU | Luxury Suv
| Others |
| LSU | Luyo Sa Utod
| Others |
| LSU | Student Union
| Others |