Adamčík (masculine), Adamčíková (feminine) is a Czech and Slovak surname. Notable people with this surname include:
- Josef Adamčík (1863–1919), Czech civil engineer, geodesist, and professor
- Oľga Adamčíková (1903–1992), Slovak film and theatre actress
- Samuel Adamčík (1904–1984), Slovak film and theatre actor
- Torey Adamcik (born 1990), American convicted murderer