That’s true of Italy where Andrea is male & Andreina is female. The Spanish male is usual Andreas or AndrĂ©s or less commonly Andreo and the female is Andrea or Andressa.
The Italian names are little weird because they defy the standard Italian -o, (male) / -a (female). This is because certain male Greek names originally entered Italy with an “s” ending, e.g., Nicolas, Andreas, Lucas. The Italians dropped the “s” but kept the “a,” hence Nicola, Andrea, Luca are male names.