List of fictional alien species: L
From Infogalactic: the planetary knowledge core
| Name | Source | Type |
|---|---|---|
| L1Z1X Mindnet | Twilight Imperium | cybernetic-organic hybrids |
| Lallorans | DC Comics' Legion of Super-Heroes | |
| Lance Corporal Dororo | Sgt. Frog | |
| Large Nostril People of Boodie-Nen | Invader Zim | Boodie-Nen is being conquered by Invader Slacks and is marked for conquest by the Irken Empire. |
| Lavos | Square-Enix's Chrono Trigger | planetary parasite |
| Laxidasians | Marvel Comics | humanoid |
| Lectroids | The Adventures of Buckaroo Banzai Across the Eighth Dimension | |
| Leerans | K. A. Applegate's Animorphs | a yellow amphibian species with tentacles for arms that resembles a manta ray or frog. They live in the vast oceans on their homeworld, Leera, which has only one small continent of land (originally, Leerans needed to go on land to mate, but technology has made that unnecessary). Leerans have advanced psychic powers, which make them very desirable Yeerk hosts. |
| Lekgolo | Halo | |
| Leoniders | Noon Universe | humanoid |
| Lepidopterran | Ben 10 | |
| Leviathan | Farscape | bio-mechanoid (artificially engineered, living sentient spaceship. Capable of natural procreation) |
| Liir | Sword of the Stars | |
| Limax | Ben 10 | |
| Lipul | Star Trek | |
| Lithians | James Blish's A Case of Conscience | |
| Little Guys | 2300 AD | |
| Livrai | Joe Haldeman's Mindbridge | |
| Lk (fungi type alien) | Star Control 3 | |
| Llorn | The Haunted Stars | Neckless bipeds who veil themselves and their spacecraft in shadow. Soft-spoken but powerful. Feared on the planet Ryn, whose empire they destroyed 30 thousand years ago. |
| Loboan | Ben 10 | |
| Lobster Men | X-COM: Terror from the Deep | |
| Locust | Gears of War | aliens that seem to originate from beneath the surface of the Earth. Intent on destroying humanity. |
| Logrians | The History of the Galaxy series | |
| Lohvo | Sluggy Freelance | |
| Lombaxes | Ratchet & Clank | |
| Loomi | Space Patrol | creatures inhabiting Jupiter with heat-retaining skins |
| Loric | Lorien Legacies | A peaceful race from the planet Lorien, who were almost wiped out by another alien race, the Mogadorians. They currently reside on Earth. |
| Lorwardians | Kim Possible | humanoid |
| Lucratians | Utopia | |
| Lumas | Super Mario Galaxy, Super Mario Galaxy 2 | |
| Luminoth | Metroid Prime 2: Echoes | peaceful race that worships "Light of Aether." Fight against Ing for control of homeworld. Only a single Luminoth is ever encountered, known as U-Mos. |
| Lunarians | Final Fantasy IV | (月の民, Tsuki no tami?, lit. "Moon People"); light-haired humanoid beings from the Moon. |
| Lunarian | Touhou Project | humanoid alien race that lives on the Earth's moon. Notable members of the race would be Kaguya Houraisan and Eirin Yagokoro. |
| Lurian | Star Trek | |
| Lurmans | Doctor Who | Humanoid |
| Luxans | Farscape | humanoid |
| Ly-Cilph | The Night's Dawn Trilogy | |
| Lycocians | Star Trek | |
| Lyrans | Star Fleet Universe |
