What is the kanji for piglet?

There isn't a single kanji specifically for "piglet." Instead, you would use the kanji for "pig" (豚, buta) and add a word to indicate it's a young one.

Here are some options:

* 子豚 (kobuta): This is the most common way to say "piglet." It literally means "child pig."

* 仔豚 (shibuta): This is a more formal way to say "piglet."

* 豚の子 (buta no ko): This is another way to say "piglet," literally meaning "pig's child."

So, depending on the context and formality level, you can choose the appropriate combination.