LEGO Sets for 9-Year-Old Boys: 24 Picks

If the most worn pages in his wildlife books are the ones about wolves, this LEGO Creator set is an easy pick.

The gray wolf is the main build of the 3-in-1, and the two other forest animal designs are a bonus for later.

Dolphins headline this 3-in-1 LEGO Creator set, a natural fit if the aquarium is his favorite outing.

When he is ready for a change, the same bricks rebuild into two other sea animals.

This LEGO Creator flower painting gives a boy with an artistic streak several toys in one.

He works through 348 pieces, then props the finished picture on his desk among his vehicles. Afterward, he can break it down and build one of the other models from the same box.

This Expecto Patronum set turns 244 LEGO pieces into the Forbidden Forest for a Harry Potter fan who builds between chapters.

His reading and building meet here: the spell from the books gets a woodland of his own to stage.

Seven Harry Potter minifigures, from Hermione Granger to a Dementor, put the characters a bookish LEGO fan reads about into his hands.

The books give him the story; the bricks let him walk Professor Remus Lupin and Ron Weasley through the infirmary. The finished castle wing ends up on his shelf, Lupin facing down the Dementor in front of it.

This LEGO Technic Ferrari FXX K turns 897 pieces into a supercar for a car-mad builder who wants a longer project.

He spends free hours snapping bricks and naming sports cars, and this kit joins both habits in a single model.

On his bedroom floor, 462 Technic pieces become a hauler for a nine-year-old who stops to watch every big construction machine.

He assembles the tipping bed himself, the moving part he studies longest whenever a real truck rolls past a job site.

Photos and videos are usually as close as a sports car fan gets to an Aston Martin Valkyrie.

This Technic kit puts one in his hands, and he gets to know the car one piece at a time while building it.

Road crews get a full play-by-play from him whenever the car passes one.

His own LEGO City backhoe loader lets him run the job site, building the digger first and then tearing up pretend roads all over his room.

Should the boy you have in mind turn every finished set into a cops-and-robbers chase, this railway robbery gives him a scene.

His figures get a heist with a clear target, so the plots he invents have somewhere to unfold. The engine then becomes the prize every crook in his toy box is after.

Once homework is put away, a nine-year-old LEGO fan gets 369 pieces to turn into Marie from The Aristocats.

Most of his models have wheels or weapons, so a Disney kitten brings a softer subject to his builds. The finished kitten then holds the end of his desk, a calm face beside the engines.

Brick-built Toy Story fun is made for a 9-year-old who spends his evenings snapping LEGO together between rewatches of the movies.

Its 714 pieces turn the Alien he knows from the movies into his own build, sitting in its rocket ride.

Lilo & Stitch quotes at the dinner table are a good sign this set fits.

It builds both Stitch and Scrump from LEGO bricks, and the finished pair gives the movie's blue troublemaker a spot on his shelf.

Dragon fans get the creature itself here: Riyu, a ninja dragon to build from bricks for Ninjago battles.

Then Riyu dives at the enemies he lines up across the table, and every battle goes wherever he decides to take it next.

Kai and Cole's Combiner Vehicles lets a nine-year-old Ninjago fan build ninja rides for the Dragons Rising heroes he follows.

He snaps together 394 pieces, then the Ice Monster gives Kai and Cole a villain to chase. The pursuit then runs across his desk and ends however he decides.

Dragons Rising fans ready for a big Ninjago build get a twin-headed dragon here.

It comes with 8 minifigures, including Lloyd, Kai, Cole and Wyldfyre. He can send them against Drix and Zarkt across his desk.