Robert Farber may refer to:

• Robert Farber (artist) (1948–1995), American artist and actor
• Robert Farber (photographer) (born 1944), American photographer

• Leptosphaerulina crassiasca
• Leptosphaerulina trifolii
• Leptosphaerulina vignae
• Leptospira icterohaemorrhagiae
• Leptospira interrogans serovar icterohaemorrhagiae
• Leptospiral Jaundice
• Leptospira noguchii
• Leptospondylus
• Leptosporangiate fern
• Leptosporangiate ferns
• Leptostracan
• Leptostromella graminis
• Leptostylis
• Leptostylis multiflora
• Leptotene
• Leptotes
• Leptotes (plant)
• Leptotes plinius
• Leptothorax
• Leptothorax buschingeri
• Leptothorax duloticus
• Leptothorax ergatogyna
• Leptothorax faberi
• Leptothorax goesswaldi
• Leptothorax kutteri