Exhibit 21.1

LOGITECH INTERNATIONAL S.A.LIST
OF SUBSIDIARIES

|Name of Subsidiary                                                       |  | Jurisdiction of
      Incorporation
|------------------------------------------------------------------------ |  | -----------------------------------
|EUROPE                                                                   |  |                                    
|3Dconnexion
    GmbH                                                     |  | Federal Republic of
      Germany  
|3Dconnexion Holding
      S.A.                                           |  | Switzerland                        
|3Dconnexion Polska Sp
z.o.o.                                             |  | Poland                             
|Labtec Europe
    S.A.                                                   |  | Switzerland                        
|Logi Trading and Services Limited Liability
      Company                |  | Hungary                            
|Logitech UK
    Limited                                                  |  | United Kingdom                     
|Logitech (Jersey) Limited                                                |  | Jersey, Channel
      Islands      
|Logitech 3D Holding
      GmbH                                           |  | Federal Republic of Germany        
|Logitech Czech Republic,
    s.r.o.                                      |  | Czech
Republic                     
|Logitech Espana BCN
      SL                                             |  | Spain                              
|Logitech Europe S.A.                                                     |  | Switzerland                        
|SAS Logitech
      France                                                |  | Republic of France                 
|Logitech GmbH                                                            |  | Federal Republic of
      Germany  
|Logitech Ireland Services
      Limited                                  |  | Ireland                            
|Logitech Italia SRL                                                      |  | Republic of
  Italy                
|Logitech Nordic
    AB                                                   |  | Sweden                             
|Logitech Benelux B.V.                                                    |  | Kingdom of the
      Netherlands   
|Logitech Poland Spolka
      z.o.o.                                      |  | Poland                             
|Logitech S.A.                                                            |  | Switzerland                        
|Logitech Austria
      GmbH                                              |  | Austria                            
|Logitech Middle East FZ-LLC                                              |  | United Arab
    Emirates           
|Logitech (Streaming Media)
      SA                                      |  | Switzerland                        
|Logitech Hellas MEPE                                                     |  | Greece                             
|Logitech Schweiz
    AG                                                  |  | Switzerland                        
|Logi Trading and Services
    LLC                                        |  | Romania                            
|Limited Liability Company
      "Logitech"                               |  | Russia                             
|Logi Peripherals Technologies (South Africa)
      (Proprietary) Limited |  | South Africa                       
|                                                                         |  |                                    
|AMERICAS                                                                 |  |                                    
|3Dconnexion Inc.                                                         |  | United States of America           
|Dexxa Accessorios De Informatica
      Do Brasil Ltda.                   |  | Brazil                             
|Labtec Inc.                                                              |  | United States of America           
|Logitech (Intrigue)
      Inc.                                           |  | Canada                             
|Logitech (Slim Devices)
      Inc.                                       |  | United States of America           
|Logitech (Streaming Media)
      Inc.                                    |  | United States of America           
|WiLife, Inc.                                                             |  | United States of America           
|Logitech Canada
    Inc.                                                 |  | Canada                             
|Logitech de Mexico S.A. de
      C.V.                                    |  | Mexico                             
|Logitech Inc.                                                            |  | United States of America           
|Logitech Servicios Latinoamérica,
      S.A. de C.V.                     |  | Mexico                             
|Ultimate Ears
LLC                                                        |  | United States of America           
|Ultimate Ears
      Incorporated                                         |  | United States of America           
|UE Consumer, LLC                                                         |  | United States of America           
|SightSpeed,
    Inc.                                                     |  | United States of America           

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LOGITECH INTERNATIONAL S.A.LIST
OF SUBSIDIARIES  (Continued)

|Name of Subsidiary                                         |  | Jurisdiction of Incorporation   
|---------------------------------------------------------- |  | --------------------------------
|ASIA
      PACIFIC                                         |  |                                 
|LogiCool Co., Ltd.                                         |  | Japan                           
|Logitech Electronic (India) Private
      Limited          |  | India                           
|Logitech Far East, Ltd.                                    |  | Taiwan, Republic of China       
|Logitech Hong Kong, Limited                                |  | Hong Kong                       
|Logitech Korea Ltd.                                        |  | Korea                           
|Logitech New Zealand Co.,
    Ltd.                         |  | New Zealand                     
|Logitech Service Asia Pacific Pte.
      Ltd.              |  | Republic of Singapore           
|Logitech Singapore Pte.
Ltd.                               |  | Republic of
      Singapore     
|Logitech Technology (Suzhou) Co.,
      Ltd.               |  | People's Republic of China      
|Logitech Electronics Trading (Shanghai) Co.
      Ltd.     |  | People's Republic of
      China
|Natural Computing Inc.                                     |  | Mauritius                       
|Suzhou Logitech Computing Equipment Co.,
      Ltd.        |  | People's Republic of
      China
|Suzhou Logitech Electronic Co.
      Ltd.                  |  | People's Republic of China      
|Logitech Asia Logistics
    Limited                        |  | Hong Kong                       
|Logitech Asia Pacific
    Limited                          |  | Hong Kong                       
|Logitech Australia Computer Peripherals Pty,
      Limited |  | Commonwealth of
      Australia 
|Logitech (Beijing) Trading Company
      Limited           |  | People's Republic of China      
|Logitech Technology (Shenzhen) Consulting
      Co., Ltd   |  | People's Republic of
      China

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