North reaction: Ulster Unionist leader David Trimble has written to Archbishop Seán Brady to convey the condolences of unionists.
"His 26-year pontificate will undoubtedly be seen as a memorable period for the Catholic Church, and so his passing will be a time of sadness for Roman Catholics across the world," Mr Trimble said. "Karol Wojtyla's life as Pope was varied, colourful and he was an influential figure on the world stage, but we will all remember him for the Polish church's role in standing up to and ending communism."
Sinn Féin president Gerry Adams said: "People throughout Ireland have had a close affinity with Pope John Paul since his historic visit here in 1979."
SDLP leader Mark Durkan said he was deeply saddened. "The Pope's devout Christian faith and true courage was an example to all. His impassioned plea for peace touched the heart of our nation and left a deep impression on me and countless others across Ireland. This is a sad day, not just for Catholics, but for people of all faiths, who cherish the values of humanity and compassion that he epitomised."
Alliance leader David Ford expressed his sympathy to those mourning the death of Pope John Paul. "The Pope provided leadership to his church and through his travels engaged with people from different faiths in many countries . . . Even those who disagreed with the stance he took on certain social issues, will respect the role he played in the liberation of central Europe from communism."
Northern secretary Paul Murphy said the Pope was "a wonderful example of compassion and humility". Mr Murphy said: "His commitment to engage with Christians of all denominations and people of all faiths around the world was a practical demonstration of his personal beliefs. The many who like me were privileged to meet him will recall a man of great warmth, dignity and profound faith."