The ideas and practices of the leaders, preachers, and movements of the Islamic revival movement known as Islamism (also referred to as Political Islam) have been criticized by non-Muslims and Muslims (often Islamic modernists and liberals).
Among those authors, scholars and leaders who have criticized Islamism, or some element of it, are Maajid Nawaz, Reza Aslan, Abdelwahab Meddeb, Muhammad Sa'id al-'Ashmawi, Khaled Abu al-Fadl, Gilles Kepel, Matthias Küntzel, Joseph E. B. Lumbard, Olivier Roy, and Indonesian Islamic group Nahdlatul Ulama.
