Car manufacturer H
| Name | Number of models |
|---|---|
| Harley Davidson | 224 |
| Harley-davidson | 7 |
| Harney | 2 |
| Hart | 2 |
| Harvey Trailer | 1 |
| Haulmark | 4 |
| Haul-master | 1 |
| H-d | 73 |
| Heartland | 19 |
| Heil | 13 |
| Heritage | 3 |
| H&h Trailer | 3 |
| Hi-bird | 2 |
| Hilo | 2 |
| Hino | 33 |
| Hitchhiker | 2 |
| Hme | 8 |
| Holiday Rambler | 76 |
| Home And Park | 6 |
| Homesteader | 1 |
| Honda | 252 |
| Honey | 1 |
| Honorbuilt | 2 |
| Host Campers | 13 |
| Hummer | 9 |
| Hurricane | 2 |
| Hyosung | 4 |
| Hyperlite | 1 |
| Hyundai | 39 |
| Hyundai Caribbean | 4 |
| Hyundai/translead | 1 |
