EXHIBIT 11

                       Aon Corporation and Subsidiaries
    
                 CONSOLIDATED NET INCOME PER SHARE COMPUTATION
    
 
     
    (millions except per share data)
                                                                Third Quarter Ended     Nine Months Ended     
                                                                --------------------   --------------------
                                                                Sept. 30,  Sept. 30,   Sept. 30,  Sept. 30,    
                                                                  1995       1994        1995       1994        
                                                                ---------  ---------   ---------  ---------
                                                                                        
    EARNINGS PER SHARE                                                                 
         Net income..............................................$ 100.0    $  86.7     $ 309.9    $ 274.0     
         Preferred stock dividends...............................    5.8        6.8        19.4       20.0     
                                                                 -------    -------     -------    -------
              Net income less preferred stock dividends..........$  94.2    $  79.9     $ 290.5    $ 254.0     
                                                                 =======    =======     =======    =======
                                                                                       
         Average common shares issued............................  110.8      106.4       110.6      106.4     
         Net effect of treasury stock activity...................   (3.4)      (4.5)       (2.8)      (4.5)    
         Weighted average effect of Series B preferred stock.....      -        3.0           -        3.3     
         Net effect of dilutive stock compensation plans based                         
               on the treasury stock method......................    0.7        0.8         0.7        0.7     
                                                                 -------    -------     -------    -------
                   Average common and common equivalent shares                                          
                    outstanding..................................  108.1      105.7       108.5      105.9     
                                                                 =======    =======     =======    =======
    Net income per share (1).....................................$  0.87    $  0.76     $  2.68    $  2.40     
                                                                 =======    =======     =======    =======
 

    (1) Primary and fully diluted net income per share are materially the same.

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