"'Colloportus!' gasped Hermione and the door sealed itself with an odd squelching noise."
Hermione Granger[src]

The Locking Spell (Colloportus) is a charm that locks doors, making it so that they cannot be opened manually. This charm is featured in The Standard Book of Spells, Grade 1[2] and its counter-charm is the Unlocking Charm, Alohomora.


The Locking Spell will shut and lock a door, preventing manual entry. The door can be unlocked with the use of a key or unlocking spell.

Known uses

" Colloportus!" Shouted Harry, and he heard three bodies slam into the other side."
—Harry uses the charm against Death Eaters[src]
Caster(s) Date Notes
Hermione Granger


18 June, 1996 Member of the D.A. used this spell in the Battle of the Department of Mysteries.
Harry Potter


Luna Lovegood


Neville Longbottom


Severus Snape July, 1996 Snape used this spell non-verbally to close and lock the unusually small door behind his bookshelf in order to prevent Peter Pettigrew overhearing his conversation with Narcissa Malfoy and Bellatrix Lestrange in 1996.[3]
2020 (Appears in alternate reality) In the alternate reality created by Albus Potter and Scorpius Malfoy, Severus Snape used this spell to lock the door to his classroom.[4]
Delphini 1981 Delphini used this spell while duelling Harry Potter to lock the doors of St Jerome's Church.[5]

Possible uses

Behind the scenes

"It appears to be some sort of locking charm"
—Harry Potter on the spell used on the doors[src]


Colloportus is composed of the prefix "collo—" deriving from Latin colligo meaning to bind together or possibly Greek κολλάω, κολλώ (collo) which means "to glue, stick" and Latin portus meaning door.


Notes and references

The Standard Book of Spells
Book of Spells 1
Grade 1 · Grade 2 · Grade 3 · Grade 4 · Grade 5 · Grade 6 · Grade 7
Charms included in the series: Fire-Making Spell · Levitation Charm · Locking Spell · Mending Charm · Softening Charm · Severing Charm · Unlocking Charm · Dancing Feet Spell · Disarming Charm · Engorgement Charm · Freezing Charm · General Counter-Spell · Memory Charm · Tickling Charm · Summoning Charm · Banishing Charm · Substantive Charm
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