“有其父必有其子”，汉语成语，字面意思是“有什么样的父亲就会有什么样的儿子”，表示“孩子的行为举止通常与父母相似（a child usually behaves in a similar way to his or her parent(s)）”，含有贬义。

与英文谚语“like father, like son”意思相近，表示“a son's character or behaviour can be expected to resemble that of his father”。

例句：

小吉姆原来和他爸爸一样懒，真是有其父必有其子。

Young Jim is turning out to be as lazy as his dad — like father, like son.

吉尔：乔治的父亲总是抽烟，而现在乔治也吸烟。

Jill: George's father smoked all the time, and now George is smoking too.

简：有其父必有其子吧。

Jane: Like father, like son, eh?