| Algol 205 | ⊕ 1960 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United States | Algol for the Burroughs 205 |
| ALGOL 30 | ⊕ 1960 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United States | Dartmouth Algol |
| Elliott ALGOL | ⊕ 1960 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United Kingdom | Hoare's seminal ALGOL 60 |
| GIER Algol | ⊕ 1960 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Denmark | Naur's seminal ALGOL 60 |
| LOGALGOL | ⊕ 1960 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Austria | Set-based ALGOL variant from IBM Vienna |
| RegneCentralen ALGOL | ⊕ 1960 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Denmark | Danish family of Algol 60 languages |