连接代词是英语语法术语，指疑问代词在引导从句时的语法名称，外文名为conjunctive pronoun。包含who、whom、whose、what、which及带-ever后缀的whoever、whomever、whatever、whichever共九个代词（其中whose不可添加-ever后缀）。

It hasn’t been announced who won the prizes.还没宣布谁获奖。

It is clear enough what she meant. 她是什么意思很清楚。

I don’t care what they think. 他们怎么想我不管。

Ask her which she wants. 问她要哪一个。

The question is who(m) we should trust.问题是我们应当相信谁。

What I want to know is which road we should take.我想知道的是我们应走哪条路。

Wherever you go, whatever you do, I will be right here waiting for you.无论你去哪里，无论你做了什么，我都会在这里等你。

连接代词还可引起不定式：

都用作宾语或介词的宾语：

Tell him what to do. 告诉他怎样做。

Lucy can’t decide which to choose. 露西不能决定选哪个好。

They exchanged views on the question of whom to elect. 他们就该选谁的问题交换了意见。