This is a list of aviation-related events from 2011.
The deadliest crash of this year was a military accident, namely the 2011 Royal Moroccan Air Force C-130 crash, which crashed near Guelmim, Morocco on 26 July killing all 80 people on board.
The deadliest commercial accident was Iran Air Flight 277, a Boeing 727 which crashed near Urmia, Iran on 9 January, killing 78 of the 105 people on board.