Liam Neeson is an Irish actor, best known for starring in films such as Schindler’s List, Taken, Batman Begins, Michael Collins, The Naked Gun, and Star Wars: The Phantom Menace. His height is often listed at 6′4″ (193.0 cm). In The Item from January 9, 1991, he said, “At the age of 16 I started to sprout up; I’m 6-foot-4 now. On Conan, when Conan O’Brien guessed he must be 6′5″, Liam replied, “I’m Six Four and a wee bit.
Liam Neeson Height
Weight Loss vs Height Appearance

Image source : Liam Neeson weight loss photo for movie role
Photo © HollywoodLife.com
Liam Neeson’s height does not change with weight gain or weight loss. He is widely listed at about 6′4″ (193.0 cm). The difference in this image comes from body shape, posture, camera angle, and how his clothes fit.
When His Weight Looked Higher
In the heavier photo, Liam Neeson looks broader through the chest, waist, and shoulders. This can make his frame look less stretched. His height still appears close to 6′4″, but the taller look feels less sharp.
After Weight Loss
After weight loss, he looks leaner and more upright. A slimmer frame can make a tall person look even taller on camera. His real height remains about 6′4″ (193.0 cm).
Best estimate: Liam Neeson did not become taller after weight loss. He only looks taller because his body line appears slimmer, cleaner, and more vertical.

