| SEL | REL Selective Release 
| Others |
| SEL | Saloon Einspritzung Lang
| Others |
| SEL | Scale Equipment Ltd
| Others |
| SEL | Schweitzer Engineering Laboratories
| Others |
| SEL | Science and Engineering Library
| Others |
| SEL | Search Engine Lab
| Others |
| SEL | Search Engine Land
| Others |
| SEL | Search Engine Literacy
| Others |
| SEL | Security Enhanced Linux
| Others |
| SEL | Select
| Others |
| SEL | Selection
| Others |
| SEL | Selector
| Others |
| SEL | Selkup
| Others |
| SEL | Selve Electronic Luxury
| Others |
| SEL | Semiconductor Energy Laboratory
| Others |
| SEL | Senior Enlisted Leader
| Others |
| SEL | Seniors Enriched Living
| Others |
| SEL | Seoul
| Others |
| SEL | Seoul, Republic of Korea
| Others |
| SEL | Serial Experiments Lain
| Others |
| SEL | Single Engine Land
| Others |
| SEL | Single Engine, Land
| Others |
| SEL | Single Event Latchup
| Others |
| SEL | Single Event Level
| Others |
| SEL | Smart Electronic Locator
| Others |
| SEL | Social and Emotional Learning
| Others |
| SEL | Social Emotional Learning
| Others |
| SEL | Socket Export Layer
| Others |
| SEL | Software Emulation Layer
| Others |
| SEL | Solar Energy Lab
| Others |
| SEL | Solar Energy Laboratory
| Others |
| SEL | Solid End Links
| Others |
| SEL | Someone Elses Love
| Others |
| SEL | Sony Electronics
| Others |
| SEL | Sound energy level
| Others |
| SEL | Sound Exposure Level
| Others |
| SEL | South Euclid Lyndhurst
| Others |
| SEL | Sparton Easy Loaders
| Others |
| SEL | Special Edition Limited
| Others |
| SEL | Special Edition Limted
| Others |
| SEL | Sport Edition Limited
| Others |
| SEL | Sport Einspritz Long
| Others |
| SEL | Sport Einspritzer Lang
| Others |
| SEL | Staff Exclusion List
| Others |
| SEL | Standard Electric Lorenz
| Others |
| SEL | Stop Engine Light
| Others |
| SEL | Strategic Environmental Leadership
| Others |
| SEL | String Expression Language
| Others |
| SEL | Studies in English Literature
| Others |
| SEL | Supreme Edition Luxury
| Others |
| SEL | Surface-Emitting Laser
| Others |
| SEL | Swedish Esports League
| Others |
| SEL | System Event Log
| Others |
| SEL | Systematic Entomology Laboratory
| Others |
| SEL | Systems Engineering Laboratory
| Others |