<p>An outdoor unit for an air conditioner, in which pressure loss by a fan guard is suppressed to a low level to improve performance of the air conditioner. The outdoor unit has an outdoor fan, an air blowout opening, and the fan guard (30). The fan guard (30) covers the air blowout opening and has a largely separated section (31) separated from the outdoor fan by 100 mm or more. Also, first openings (OP1) having a minimum width of 15 mm or more are formed in the largely separated section (31).</p>
