Image | Item No. | Description |
| 6826-1 (Inv) | Crater Crawler 27 Parts, 1 Minifigure, 1985 Catalog: Sets: Space: Classic Space |
| 1787-1 (Inv) | Crater Cruiser 171 Parts, 2 Minifigures, 1995 Catalog: Sets: Space: Unitron |
| 1105-1 (Inv) | Crawler Tracks 2 Parts, 1977 Catalog: Sets: Service Packs |
| 5518-1 (Inv) | Creative Building 74 Parts, 2007 Catalog: Sets: DUPLO: Basic Set |
| 66189-1 (Inv) | Creative Building 2 Sets, 2007 Catalog: Sets: DUPLO: Basic Set |
| 5519-1 (Inv) | Creator Bucket 481 Parts, 2007 Catalog: Sets: Creator: Basic Set |
| 3169-1 (Inv) | Crib and Mirror Adventure 2 Parts, 2001 Catalog: Sets: Baby |
| 5423-1 (Inv) | Crib and Mirror Adventure 2 Parts, 2002 Catalog: Sets: Explore: Explore Being Me |
| 6553-1 (Inv) | Crisis News Crew 124 Parts, 3 Minifigures, 1997 Catalog: Sets: Town: Outback |
| 2662-1 (Inv) | Crocodile and Sea Lion (Zoo Feeding Time/Pool Pals) 14 Parts, 1 Minifigure, 1990 Catalog: Sets: DUPLO: DUPLO, Town: Zoo |
| 6246-1 (Inv) | Crocodile Cage 51 Parts, 2 Minifigures, 1994 Catalog: Sets: Pirates: Pirates I: Islanders |
| 4551-1 (Inv) | Crocodile Locomotive 308 Parts, 1 Minifigure, 1991 Catalog: Sets: Train: 9V |
| 5253-1 (Inv) | Cross Axles 12 Parts, 1989 Catalog: Sets: Service Packs: Technic |
| 5254-1 (Inv) | Cross Axles 9 Parts, 1989 Catalog: Sets: Service Packs: Technic |
| 970611-1 (Inv) | Cross Axles with Knobs (Pack of 100) 100 Parts, 2002 Catalog: Sets: Educational & Dacta: Service Packs: Technic |
| 970628-1 (Inv) | Cross Blocks (Pack of 50) 50 Parts, 2002 Catalog: Sets: Educational & Dacta: Service Packs: Technic |
| 6250-1 (Inv) | Cross Bone Clipper 141 Parts, 3 Minifigures, 1997 Catalog: Sets: Pirates: Pirates I |
| 20-3 (Inv) | Cross Country 42mm Tires 2 Parts, 1977 Catalog: Sets: Service Packs |
| 6323-1 (Inv) | Cross Road Plates 2 Parts, 1997 Catalog: Sets: Town: Town Jr.: Supplemental |
| 6304-1 (Inv) | Cross Roads Plates 2 Parts, 1980 Catalog: Sets: Town: Classic Town: Supplemental |
| 6313-1 (Inv) | Cross-Road Plates 2 Parts, 1986 Catalog: Sets: Town: Classic Town: Supplemental |
| 1804-1 (Inv) | Crossbow Boat polybag 17 Parts, 1 Minifigure, 1996 Catalog: Sets: Castle: Royal Knights |
| 1732-1 (Inv) | Crossbow Cart 19 Parts, 1 Minifigure, 1994 Catalog: Sets: Castle: Dragon Knights |
| 6004-1 (Inv) | Crossbow Cart 16 Parts, 1 Minifigure, 1997 Catalog: Sets: Castle: Fright Knights |
| 1712-1 (Inv) | Crossbow Cart polybag 19 Parts, 1 Minifigure, 1994 Catalog: Sets: Castle: Dragon Knights |
| 1287-1 (Inv) | Crossbows 10 Parts, 1 Minifigure, 2000 Catalog: Sets: Castle: Knights Kingdom I |
| 7857-1 (Inv) | Crossing, Electric Rails Gray 12v 5 Parts, 1980 Catalog: Sets: Train: Supplemental: 12V |
| 7853-1 (Inv) | Crossing, Gray 4.5v 5 Parts, 1980 Catalog: Sets: Train: Supplemental: 4.5V |
| 2714-1 (Inv) | Crossings 4 Parts, 1987 Catalog: Sets: DUPLO: DUPLO, Train |
| 159-1 (Inv) | Crossover, Straight Rails 25 Parts, 1976 Catalog: Sets: Train: Supplemental: 4.5V |
| 5258-1 (Inv) | Crown/Point Wheels, Gear Racks, Worm Gears 10 Parts, 1989 Catalog: Sets: Service Packs: Technic |
| 1877-1 (Inv) | Crusader's Cart 51 Parts, 2 Minifigures, 1990 Catalog: Sets: Castle: Forestmen |
| 6145-1 (Inv) | Crystal Crawler 88 Parts, 1 Minifigure, 1996 Catalog: Sets: Aquazone: Aquanauts |
| 1728-1 (Inv) | Crystal Crawler {with Aqua Playscape} 89 Parts, 1 Minifigure, 1996 Catalog: Sets: Aquazone: Aquanauts |
| 6150-1 (Inv) | Crystal Detector 97 Parts, 1 Minifigure, 1998 Catalog: Sets: Aquazone: Hydronauts |
| 6159-1 (Inv) | Crystal Detector 97 Parts, 1 Minifigure, 1998 Catalog: Sets: Aquazone: Hydronauts |
| 6175-1 (Inv) | Crystal Explorer Sub 152 Parts, 2 Minifigures, 1995 Catalog: Sets: Aquazone: Aquanauts |
| 2160-1 (Inv) | Crystal Scavenger 103 Parts, 1 Minifigure, 1997 Catalog: Sets: Aquazone: Aquaraiders I |
| 2076-1 (Inv) | Cubby House 4 Parts, 1 Minifigure, 3 Gear, 1999 Catalog: Sets: Primo |
| 5037-1 (Inv) | Current Carrying Plates 9 Parts, 1988 Catalog: Sets: Service Packs |
| 1383-1 (Inv) | Curse of the Pharaoh 41 Parts, 2 Minifigures, 2002 Catalog: Sets: Studios |
| 424-1 | Curved Bricks, Assorted Colours (6) 1966 Catalog: Sets: Samsonite: Supplemental |
| 4520-1 (Inv) | Curved Rails 8 Parts, 1991 Catalog: Sets: Train: Supplemental: 9V |
| 2712-1 (Inv) | Curved Rails 4 Parts, 1983 Catalog: Sets: DUPLO: DUPLO, Train |
| 2735-1 (Inv) | Curved Rails (Dark Gray) 6 Parts, 1993 Catalog: Sets: DUPLO: DUPLO, Train |
| 552-1 (Inv) | Curved Road Plates 2 Parts, 1979 Catalog: Sets: Town: Classic Town: Supplemental |
| 301-1 (Inv) | Curved Road Plates 2 Parts, 1978 Catalog: Sets: Town: Classic Town: Supplemental |
| 6311-1 (Inv) | Curved Road Plates 2 Parts, 1986 Catalog: Sets: Town: Classic Town: Supplemental |
| 6321-1 (Inv) | Curved Road Plates 2 Parts, 1997 Catalog: Sets: Town: Town Jr.: Supplemental |
| 151-1 (Inv) | Curved Track 25 Parts, 1966 Catalog: Sets: Train: Supplemental: 4.5V |