Block cipher/Catalogs/Cipher list

64-bit blocks

Ciphers of the Data Encryption Standard generation, all with 64-bit block size, include:

The Data Encryption Standard itself, the first well-known Feistel cipher, using 16 rounds and eight 6 by 4 S-boxes.
The GOST cipher, a Soviet standard similar in design to DES, a 32-round Feistel cipher using eight 4 by 4 S-boxes.
IDEA, the International Data Encryption Algorithm, a European standard, not a Feistel cipher, with only 8 rounds and no S-boxes.
RC2, a Feistel cipher from RSA Security which was approved for easy export from the US (provided it was used with only a 40-bit key), so widely deployed.
RC5, a Feistel cipher from RSA security. This was fairly widely deployed, often replacing RC2 in applications.
CAST-128, a widely used 16-round Feistel cipher, with 8 by 32 S-boxes.
Blowfish, another widely used 16-round Feistel cipher with 8 by 32 S-boxes.
The Tiny Encryption Algorithm, or TEA, designed to be very small and fast but still secure, a 32-round Feistel cipher without S-boxes.
Skipjack, an algorithm designed by the NSA for use in the Clipper chip, a 32-round unbalanced Feistel cipher.
SAFER and LOKI, two families of ciphers which each included an original version against which Lars Knudsen found an attack and a revised version to block that attack. Each had a descendant which was an AES candidate.

The 3-Way cipher used 96-bit blocks.

Ciphers of the Advanced Encryption Standard generation, all with 128-bit block size, include:

AES itself, formerly known as Rijndael, an SP network, from two Belgian designers
Twofish, a cipher with key-dependent S-boxes, from a team at Bruce Schneier's company Counterpane
MARS, a variant of Feistel cipher using data-dependent rotations, from IBM
Serpent, an SP network, from an international group of well-known players
RC6, a cipher using data-dependent rotations, from a team led by Ron Rivest
CAST-256, based on CAST-128 and with the same theoretical advantages
DFC, based on another theoretical analysis proving resistance to various attacks.
DEAL, a Feistel cipher using DES as the round function
E2, from Japan
CRYPTON, a Korean cipher with some design similarities to AES
MAGENTA, Deutsche Telekom's candidate, quickly broken
LOKI97, one of the LOKI family of ciphers, from Australia
SAFER+, one of the SAFER family of ciphers, from Cylink Corporation
Camellia, an 18-round Feistel cipher widely used in Japan and one of the standard ciphers for the NESSIE (New European Schemes for Signatures, Integrity and Encryption) project.
SEED, developed by the Korean Information Security Agency (KISA) and widely used in Korea.

Ciphers with variable block size, whose 128-bit variants were AES candidates, are:

Ciphers with large fixed block size are:

the unnamed 512-bit AES-like block cipher used in the Whirlpool hash algorithm
the Threefish cipher, with 256, 512 and 1024-bit versions, used in the Skein hash algorithm