Ben Atkinson, 32, is known to frequent the Horsham area and is described as white, 5’9, of muscular build, with brown eyes and short dark brown hair.
Police say he was released from prison on licence in November 2020 part way through a four year sentence for drugs offences, but the probation service now require his return for breaching the licence conditions.
As well as frequenting Horwsham, police say he also frequents other areas in West and East Sussex.
A spokesman said: “Anyone who sees Atkinson should not approach him but call 999 right away.
“If you have other information on his whereabouts, please contact the police either online or by calling 101. Always quote serial 969 of 17/11.”