| Image | Item No. | Description |
| 40581-1 (Inv) | BIONICLE Tahu and Takua 219 Parts, 2023 Catalog: Sets: BIONICLE |
| 31143-1 (Inv) | Birdhouse 476 Parts, 2023 Catalog: Sets: Creator: Model: Creature |
| char06-4 (Inv) | Birdo, Super Mario, Series 6 (Complete Set) 25 Parts, 1 Minifigure, 2023 Catalog: Sets: Super Mario: Super Mario Series 6 |
| col22-9 (Inv) | Birdwatcher, Series 22 (Complete Set with Stand and Accessories) 5 Parts, 1 Minifigure, 2022 Catalog: Sets: Collectible Minifigures: Series 22 Minifigures |
| 40780-1 | Birthday Cake 2025 Catalog: Sets: Holiday & Event: Birthday |
| 40905-1 | Birthday Cupcake 2026 Catalog: Sets: Holiday & Event: Birthday |
| 40584-1 (Inv) | Birthday Diorama 149 Parts, 2 Minifigures, 2023 Catalog: Sets: Holiday & Event: Birthday |
| 40807-1 (Inv) | Birthday Numbers 281 Parts, 2025 Catalog: Sets: Holiday & Event: Birthday |
| 30689-1 (Inv) | Birthday Party Animals paper bag / polybag 60 Parts, 2025 Catalog: Sets: Creator: Basic Model: Holiday & Event: Birthday |
| 40815-1 (Inv) | Birthday Party Cake 219 Parts, 2025 Catalog: Sets: Holiday & Event: Birthday |
| 30642-1 (Inv) | Birthday Train polybag 58 Parts, 2023 Catalog: Sets: Creator: Basic Model: Holiday & Event: Birthday |
| 76784-1 (Inv) | Black Dahlia Flower 349 Parts, 2 Minifigures, 2025 Catalog: Sets: Wednesday |
| 76215-1 (Inv) | Black Panther 2961 Parts, 2022 Catalog: Sets: Super Heroes: Sculptures: Black Panther |
| 76186-1 (Inv) | Black Panther Dragon Flyer 191 Parts, 3 Minifigures, 2021 Catalog: Sets: Super Heroes: The Infinity Saga |
| 76214-1 (Inv) | Black Panther: War on the Water 516 Parts, 5 Minifigures, 2022 Catalog: Sets: Super Heroes: Black Panther Wakanda Forever |
| 76260-1 (Inv) | Black Widow & Captain America Motorcycles 122 Parts, 2 Minifigures, 2023 Catalog: Sets: Super Heroes: The Infinity Saga |
| 40580-1 (Inv) | Blacktron Cruiser 343 Parts, 2 Minifigures, 2023 Catalog: Sets: Space: Blacktron I |
| col26-12 (Inv) | Blacktron Mutant, Series 26 (Complete Set with Stand and Accessories) 3 Parts, 1 Minifigure, 2024 Catalog: Sets: Collectible Minifigures: Series 26 Minifigures |
| 10355-1 (Inv) | Blacktron Renegade 1121 Parts, 4 Minifigures, 2025 Catalog: Sets: Space: Blacktron I |
| 77056-1 (Inv) | Blathers's Museum Collection 537 Parts, 2 Minifigures, 2025 Catalog: Sets: Animal Crossing |
| char06-1 (Inv) | Blooper, Super Mario, Series 6 (Complete Set) 23 Parts, 4 Minifigures, 2023 Catalog: Sets: Super Mario: Super Mario Series 6 |
| 10471-1 | Blue Police Motorcycle 2026 Catalog: Sets: DUPLO: DUPLO, Town: Police |
| char05-5 (Inv) | Blue Shy Guy, Super Mario, Series 5 (Complete Set) 23 Parts, 1 Minifigure, 2022 Catalog: Sets: Super Mario: Super Mario Series 5 |
| 30687-1 (Inv) | Bluey Tea Party paper bag / polybag 30 Parts, 1 Minifigure, 2025 Catalog: Sets: Bluey |
| 11202-1 (Inv) | Bluey's Beach & Family Car Trip 123 Parts, 3 Minifigures, 2025 Catalog: Sets: Bluey |
| 11203-1 (Inv) | Bluey's Family House 368 Parts, 4 Minifigures, 2025 Catalog: Sets: Bluey |
| 10459-1 (Inv) | Bluey's Family House with Memory Game 80 Parts, 3 Minifigures, 2025 Catalog: Sets: DUPLO: Bluey |
| 76922-1 (Inv) | BMW M4 GT3 & BMW M Hybrid V8 666 Parts, 2 Minifigures, 2024 Catalog: Sets: SPEED CHAMPIONS |
| 75387-1 (Inv) | Boarding the Tantive IV 470 Parts, 7 Minifigures, 2024 Catalog: Sets: Star Wars: Star Wars Episode 4/5/6 |
| 75369-1 (Inv) | Boba Fett Mech 156 Parts, 1 Minifigure, 2023 Catalog: Sets: Star Wars: Star Wars Other: Star Wars Mechs |
| 75344-1 (Inv) | Boba Fett's Starship Microfighter {Slave I} 80 Parts, 1 Minifigure, 2023 Catalog: Sets: Star Wars: Star Wars The Book of Boba Fett |
| 76450-1 (Inv) | Book Nook: Hogwarts Express 824 Parts, 2 Minifigures, 2025 Catalog: Sets: Harry Potter: Sorcerer's Stone |
| 40698-1 (Inv) | Books Are My Passion 281 Parts, 1 Minifigure, 2024 Catalog: Sets: LEGO Ideas (CUUSOO) |
| 40695-1 (Inv) | Borgin and Burkes: Floo Network 186 Parts, 1 Minifigure, 2024 Catalog: Sets: Harry Potter: Chamber of Secrets |
| 10374-1 (Inv) | Bouquet of Pink Roses 789 Parts, 2025 Catalog: Sets: Botanicals |
| 72039-1 (Inv) | Bowser's Castle 831 Parts, 4 Minifigures, 2025 Catalog: Sets: Super Mario: Mario Kart |
| 41807-1 (Inv) | Bracelet Designer Mega Pack 388 Parts, 2023 Catalog: Sets: Dots: Bracelet |
| 41947-1 (Inv) | Bracelets Mega Pack {Mickey and Friends} 349 Parts, 2022 Catalog: Sets: Dots: Bracelet: Disney |
| 76960-1 (Inv) | Brachiosaurus Discovery 496 Parts, 3 Minifigures, 2023 Catalog: Sets: Jurassic World: Jurassic Park |
| char06-5 (Inv) | Bramball, Super Mario, Series 6 (Complete Set) 18 Parts, 1 Minifigure, 2023 Catalog: Sets: Super Mario: Super Mario Series 6 |
| 910034-1 (Inv) | Brick Cross 3017 Parts, 8 Minifigures, 1 Gear, 2024 Catalog: Sets: BrickLink Designer Program: BDP Series 2 |
| 75582-1 (Inv) | Brick-Built Gru and Minions 839 Parts, 2024 Catalog: Sets: Despicable Me and Minions: Despicable Me 4 |
| 76974-1 (Inv) | Brick-Built Mosasaurus Boat Mission 850 Parts, 2 Minifigures, 2025 Catalog: Sets: Jurassic World: Rebirth |
| 75407-1 (Inv) | Brick-Built Star Wars Logo 700 Parts, 2025 Catalog: Sets: Star Wars: Sculptures |
| 6427896-1 | Bricktober Set 1/4 - Space Adventure Ride (2022 Toys "R" Us Exclusive) {Asian and Canadian Release} 2022 Catalog: Sets: Promotional |
| 6427895-1 | Bricktober Set 2/4 - Pirate Adventure Ride (2022 Toys "R" Us Exclusive) {Asian and Canadian Release} 2022 Catalog: Sets: Promotional |
| 6427893-1 | Bricktober Set 3/4 - Fantasy Adventure Ride (2022 Toys "R" Us Exclusive) {Asian and Canadian Release} 2022 Catalog: Sets: Promotional |
| 6427894-1 (Inv) | Bricktober Set 4/4 - Dragon Adventure Ride (2022 Toys "R" Us Exclusive) {Asian and Canadian Release} 164 Parts, 1 Minifigure, 2022 Catalog: Sets: Promotional |
| 40728-1 (Inv) | Brite Bomber 151 Parts, 2024 Catalog: Sets: BrickHeadz: Fortnite |
| 21339-1 (Inv) | BTS Dynamite 721 Parts, 7 Minifigures, 2023 Catalog: Sets: LEGO Ideas (CUUSOO) |