Giovanni Trapattoni's Republic of Ireland have dropped eight places in the updated Fifa ranking, which was announced Wednesday morning.
The Boys in Green have continued their decline following the European Championship in the summer, falling to 36 in the list.
Spain and Germany each hold on to first and second place respectively, while England have dropped one place out of the top five. Argentina have climbed one place to replace Portugal at third place.
The fall of eight places marks Ireland's second consecutive drop in the table after falling two places in October and since Euro 2012, Ireland have gradually fallen a total of 18 places.
Northern Ireland, meanwhile, have catapulted up 17 places in the rankings after their creditable draw with Portugal and now find themselves ranked at 100.