L

Fat Lady ~ Guardian of the entrance to Gryffindor. [1, 7]

Langlock ~ A spell taht glues the tongue to the roof of the mouth [6,12]

The Leaky Cauldron ~ A tiny, grubby-looking pub in London's Charing Cross Road, leading to Diagon Alley. [1,5]

Legilimency ~ The ability to extract feelings and memories from another's mind. [5,24]

Bellatrix (Bella) Black Lestrange ~ Death Eater; sent to Azkaban for the torture of Frank and Alice Longbottom. [4,27]

Rabastan Lestrange - Death Eater, brother of Rodolphus. [5,6]

Rodolphus Lestrange ~ Death Eater; sent to Azkaban for the torture of Frank and Alice Longbottom. [4,27]

Levicorpus ~ A spell in which the victum is dangled upside-down, as if suspended by the ankle. [6,12]

Liberacorpus ~ Counter-jinx for Levicorpus. Frees the target of being suspende in mid-air. [6,12]

The Life and Lies of Albus Dumbledore ~ Biography, by Rita Skeeter. [7,13]

Little Hangleton ~ Tom Riddle's home village. [4,1]

Draught of Living Death ~ A powerful sleeping potion, made from asphodel and wormwood. [1,8]

Gilderoy Lockhart ~ Author of various tomes, including Gilderoy Lockhart's Guide to Household Pests and Teacher of Defence Against The Dark Arts (year 2). [2,3]

Locomotor ~ A portering charm. [5,3]

Locomotor Mortis ~ The leg-locker curse, a spell that bids the legs together; bunny hopping is still possible, and there is a counter curse. [1,13]

Alice Longbottom ~ Neville's mother, once an Auror. [4,30]

Frank Longbottom ~ Neville's father, once an Auror. [4,30]

Augusta Longbottom ~ Neville's Grandmother. [1,6]

Neville Longbottom ~ One of Harry's fellow Gryffindor students at Hogwarts. [1,6]

Luna Lovegood ~ Ravenclaw student in Ginny's year; also known as 'Loony'. [5,10]

Xenophilius Lovegood ~ Luna's father, and editor of the Quibbler. [7,8]

Lumos ~ A charm to create a light at a wand's tip. [2,15]

Professor Remus J. Lupin ~ Teacher of Defence Against The Dark Arts (year 3). [3,5]