| Item No. | Description | Image |
| 1926-1 (Inv) | Combi Pack
2 Sets, 6 Parts, 1986
Catalog: Sets: DUPLO: Rattles | 
* |
| 1505-1 (Inv) | Combi Pack
2 Sets, 1986
Catalog: Sets: DUPLO: Basic Set | 
* |
| 1313-1 (Inv) | Combibox containing items 1300-1311
12 Sets, 1983
Catalog: Sets: Educational & Dacta: Service Packs | 
* |
| 412502-1 (Inv) | Combine Harvester paper bag
80 Parts, 2025
Catalog: Sets: Technic: Model: Farm | 
* |
| 70373-1 (Inv) | Combo NEXO Powers Wave 2 polybag
10 Parts, 2017
Catalog: Sets: NEXO KNIGHTS: Supplemental | 
* |
| LLMY01-1 (Inv) | Commemorative Brick 2016, LEGOLAND Malaysia, Set of 6 Duplo Bricks 1 x 2 x 2
6 Parts, 2016
Catalog: Sets: LEGO Brand: LEGOLAND Parks | 
* |
| 5003471-1 (Inv) | Community Builder Center Pack
4 Sets, 2014
Catalog: Sets: Educational & Dacta | 
* |
| 1042-1 (Inv) | Community People
12 Minifigures, 1986
Catalog: Sets: Educational & Dacta: DUPLO: Supplemental | 
* |
| 9224-1 (Inv) | Community People
20 Minifigures, 2006
Catalog: Sets: Educational & Dacta: DUPLO: Supplemental | 
* |
| 9209-1 (Inv) | Community Services Set
119 Parts, 12 Minifigures, 2012
Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town | 
* |
| 9211-1 (Inv) | Community Transport
51 Parts, 8 Minifigures, 2006
Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Traffic | 
* |
| 9132-1 (Inv) | Community Transport Set
40 Parts, 9 Minifigures, 2004
Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Traffic | 
* |
| 5004568-1 (Inv) | Community Transportation Center Pack
3 Sets, 2015
Catalog: Sets: Educational & Dacta: DUPLO | 
* |
| 1044-1 (Inv) | Community Vehicles
29 Parts, 6 Minifigures, 1986
Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Traffic | 
* |
| 1067-1 (Inv) | Community Vehicles
144 Parts, 14 Minifigures, 1985
Catalog: Sets: Educational & Dacta: Town | 
* |
| 9369-1 (Inv) | Community Vehicles
6 Sets, 1998
Catalog: Sets: Educational & Dacta: Town | 
* |
| 9170-1 (Inv) | Community Workers / Community People / Family Workers
18 Minifigures, 1995
Catalog: Sets: Educational & Dacta: DUPLO: Supplemental | 
* |
| 10285-1 (Inv) | Compass Sensor for Mindstorms NXT
1 Part, 2011
Catalog: Sets: MINDSTORMS: NXT | 
* |
| 5204-1 (Inv) | Competition Accessories
11 Parts, 1999
Catalog: Sets: Service Packs: Technic | 
* |
| 880001-1 (Inv) | Competition Racers with Stopwatch
2 Sets, 1 Gear, 1998
Catalog: Sets: Technic: Competition | 
* |
| K7775-1 (Inv) | Complete Aqua Raiders Collection
6 Sets, 2007
Catalog: Sets: Aquazone: Aquaraiders II | 
* |
| K7029-1 (Inv) | Complete Castle Collection
7 Sets, 2007
Catalog: Sets: Castle: Fantasy Era | 
* |
| 262-2 (Inv) | Complete Children's Room Set
259 Parts, 1972
Catalog: Sets: Homemaker | 
* |
| 120-1 (Inv) | Complete Freight Train Set with Tipper Trucks
169 Parts, 1969
Catalog: Sets: Train: 4.5V | 
* |
| 261-4 (Inv) | Complete Kitchen Set
156 Parts, 1971
Catalog: Sets: Homemaker | 
* |
| K7699-1 (Inv) | Complete Mars Mission Collection
8 Sets, 2007
Catalog: Sets: Space: Mars Mission | 
* |
| K3354-1 (Inv) | Complete Thomas Collection
8 Sets, 2007
Catalog: Sets: DUPLO: DUPLO, Train: Thomas & Friends | 
* |
| 5117-1 (Inv) | Compressor Pump
7 Parts, 1993
Catalog: Sets: Service Packs: Technic | 
* |
| 1809-1 (Inv) | Condor Promotional Airplane polybag
27 Parts, 1996
Catalog: Sets: Universal Building Set: Airport | 
* |
| 1337-1 (Inv) | Connecting Leads
6 Parts, 1985
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 9861-1 (Inv) | Connecting Leads (4.5V)
8 Parts, 1992
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 9897-1 (Inv) | Connecting Leads (9V)
3 Parts, 1998
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 9887-1 | Connecting Leads (9V)
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 5260-1 (Inv) | Connecting Rods and Stop Bushes
32 Parts, 1989
Catalog: Sets: Service Packs: Technic | 
* |
| 45657-1 | Connection Cards
2025
Catalog: Sets: Educational & Dacta: Science | 
* |
| 5305-1 (Inv) | Connection Wire
1 Part, 1992
Catalog: Sets: Service Packs: Train | 
* |
| 8529-1 (Inv) | Connector Cables for Mindstorms NXT
7 Parts, 2006
Catalog: Sets: MINDSTORMS: NXT | 
* |
| 991337-1 (Inv) | Connector Peg with Axle (Pack of 100)
100 Parts, 2007
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 970038-1 (Inv) | Connector Peg With Axle (Pack of 100)
100 Parts, 2002
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 1316-1 (Inv) | Connector Pegs
150 Parts, 1985
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 5003121-1 (Inv) | Connector Pegs
100 Parts
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 970603-1 (Inv) | Connector Pegs (Pack of 100)
100 Parts, 2002
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 970608-1 (Inv) | Connector Pegs (Pack of 100)
100 Parts, 2002
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 970606-1 (Inv) | Connector Pegs with Axles (Pack of 100)
100 Parts, 2002
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 5003123-1 (Inv) | Connector Pegs with Cross Axle
100 Parts
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 5003122-1 (Inv) | Connector Pegs with Friction Ridge - Black
100 Parts
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 5003118-1 (Inv) | Connector Pegs with Friction Ridge and Cross Axle
100 Parts
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 5003124-1 (Inv) | Connector Pegs with Knobs
100 Parts
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 970607-1 (Inv) | Connector Pegs with Knobs (Pack of 100)
100 Parts, 2002
Catalog: Sets: Educational & Dacta: Service Packs: Technic | 
* |
| 5257-1 (Inv) | Connector Pegs, Toggle Joints, Wheels
25 Parts, 1989
Catalog: Sets: Service Packs: Technic | 
* |