- 21 April 1938 - Death of Sir Allama Muhammad Iqbal, national poet of Pakistan.
- 1 April 1979 - Iran officially becomes an Islamic Republic after a national referendum
- 9 April 2008 - Al Jazeera reports that Libya released at least 90 members of the Libyan Islamic Fighting Group
- 15 April 1979 - Mazhar Krasniqi (pictured at right) becomes first president for new organization Federation of Islamic Associations of New Zealand
- 19 April 2007 - Organization Islamic State of Iraq announces it had set up a provisional government termed "the first Islamic administration" of post-invasion Iraq