Police are appealing for information to find 30-year-old Craig William Baker, from Cwmfelinfach, who has breached his prison release licence conditions.
Baker was sentenced to 27 months in February last year for malicious wounding and actual bodily harm.
He was released from prison on licence in March this year.
Baker is described as white, of a slim build, approximately 5ft 4in in height, with very short fair hair.
He has a one inch scar above his left eyebrow.
Gwent Police have said Baker is known to frequent the Risca and Blackwood areas as well as the surrounding areas of Gwent.
Anyone with information relating to his whereabouts can contact Gwent Police on 101, quoting log 420 28/08/14, or Crimestoppers anonymously on 0800 555 111.