Maurice Rubens was last seeen at a takeaway in the village’s main street at around 6pm on March 31.
Police said they are becoming increasingly concerned for his welfare.
Speculation on social media websites that a body was found in Tandragee are unfounded.
A PSNI spokesperson said: “Police continue their appeal for information on the whereabouts of Mr Rubens.”
He is of short and stocky build, with a black and white beard.
He was wearing a blue beanie hat with a red and white Arsenal logo, a black coat and a slim blue rucksack.
Mr Rubens, or anyone who knows of his whereabouts, is asked to contact Lurgan Police Station on 0845 600 8000.