Anthony Etherin is a UK-based poet and musician.

He is best known for composing constraint-based poetry, such as anagrams and palindromes, and for combining these techniques with traditional poetic forms. He is the inventor of the aelindrome, a new alphabetical constraint, in which letters are parsed according to premeditated, palindromic numerical sequences.

Anthony’s music similarly employs constraint-based techniques, and stylistically leans towards melodic hardcore punk.

In addition to poetry and music, Anthony runs the indie publisher Penteract Press and hosts The Penteract Podcast.