Ilich, Ilyich, or Ilitch ({{lang-ru|Ильич}}) is a common Russian patronymic meaning "son of Ilya". In some Hispanic countries it is also used as a given name, honoring Vladimir Lenin (Vladimir Ilyich Ulyanov).

Ilich or Ilitch (Macedonian or Russian: Илич, Serbian: Илић) is also a separate non-Russian Slavic surname.

The name may refer to the following people:

Given name

• Ilich Lozano (born 1982), Mexican politician
• Ilich Ramírez Sánchez or Carlos the Jackal (born 1949), Venezuelan terrorist
• Ilyich Rivas (born 1993), Venezuelan conductor

Surname

• Christopher Ilitch (born 1965), American businessman, son of Marian and Mike
• Denise Ilitch (born 1955), American businesswoman and lawyer, daughter of Marian and Mike
• Fran Ilich, Mexican writer and media artist
• Janine Ilitch (born 1972), Australian netball player
• Marian Ilitch (born 1933), American businesswoman, wife of Mike
• Mike Ilitch (1929–2017), American entrepreneur
  • Mike and Marian Ilitch Humanitarian Award
  • Ilitch Holdings
• Nikola Ilich (born 1992), American association football midfielder
• Olga Ilich (born 1950 or 1951), Canadian politician
• Tode Ilich, Mayor of Kumanovo Municipality in Macedonia

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