There is no one "best" hairstyle for a girl, as the ideal hairstyle will depend on factors such as hair type, length, and personal style. However, there are many cute and stylish hairstyles that girls can choose from, depending on their preferences and the occasion. Here are some popular hairstyles for girls, as suggested by the search results:

• For little girls: Cute buns, frisky pigtails, playful braids, and natural-looking loose styles are all great options. Some specific hairstyles include Dutch braids into voluminous buns, multi-strand French and bun, and half updo with ribbon braids.

• For teenage girls: Hairstyles that are cute, stylish, and easy to do are ideal for busy teens. Some popular options include low buns with a side part, chunky braids with wispy layers, and four-strand braids with a low bun.

• For women: In 2023, retro haircuts like shags, curtain bangs, and even mullets are predicted to be popular, as well as classic styles with long, blended layers. Some other trendy haircuts for women include the two-tone messy bob, wavy cut with curtain bangs, and straight blunt haircut with long curtain bangs.

Ultimately, the best hairstyle for a girl will depend on her individual preferences and the occasion. Girls can experiment with different styles and find the one that makes them feel confident and beautiful.