| Set | No. | Name | Rarity | |
|---|---|---|---|---|
| Base | 56 | Onix | Common | |
| Base Set — Unlimited | 56 | Onix | Common | |
| Base Set 2 | 84 | Onix | Common | |
| Gym Heroes | 21 | Brock's Onix | Rare | |
| Gym Heroes | 69 | Brock's Onix | Common | |
| Southern Islands | 3 | Onix | ||
| Legendary Collection | 84 | Onix | Common | |
| Aquapolis | 98 | Onix | Common | |
| Sandstorm | 71 | Onix | Common | |
| FireRed & LeafGreen | 42 | Onix | Uncommon | |
| Team Rocket Returns | 69 | Onix | Common | |
| Unseen Forces | 65 | Onix | Common | |
| Diamond & Pearl | 92 | Onix | Common | |
| Stormfront | 69 | Onix | Common | |
| HS—Unleashed | 56 | Onix | Common | |
| HS—Unleashed | 57 | Onix | Common | |
| Plasma Freeze | 61 | Onix | Uncommon | |
| Evolutions | 61 | Onix | Common | |
| Unified Minds | 103 | Onix | Common | |
| Hidden Fates | 36 | Onix-GX | Rare Holo GX | |
| McDonald's Collection 2019 | 9 | Onix | ||
| Battle Styles | 68 | Onix | Common | |
| Fusion Strike | 138 | Onix | Common | |
| Pokémon GO | 36 | Onix | Common | |
| 151 | 95 | Onix | Uncommon | |
| Paradox Rift | 90 | Onix | Common | |
| Mega Evolution | 70 | Onix | Common | |
| Base Set (Shadowless) | 056 | Onix | Common | |
| Celestial Storm | 71 | Onix | Common | |
| Cosmic Eclipse | 105 | Onix | Common | |
| EX Battle Stadium | 71 | Onix | ||
| Lost Thunder | 109 | Onix | Common | |
| Neo Genesis | 69 | Onix | Common |