1. (

• Fischer ,
• Hans_Fischer

) German chemist noted for his synthesis of hemin (1881-1945) ;

2. (

• Fischer ,
• Emil_Hermann_Fischer

) German chemist noted for work on synthetic sugars and the purines (1852-1919) ;

3. (

• Fischer ,
• Bobby_Fischer ,
• Robert_James_Fischer

) United States chess master; world champion from 1972 to 1975 (born in 1943) ;