This is...

Here's ...

meet ...

Do you know each other?

Have I introduced you to ...?

Do you know ...?

Have you met ...?

I want you to meet ...

I'd like you to meet ...

May I introduce ...

Allow me to introduce ...

Please let me introduce ...

May I present ...

Perhaps I could introduce ...

I'd like to introduce ...

I'm honored to present...

I'm very pleased to present...

It's with great pleasure that I introduce you to ...

Hi, I'm ...

How do you do? I'm ...

I don't believe we've met. I'm ...

I don't think we've met. My name is ...

Hello, this is ...

Hello, here ...

Hello, speaking .

Allow me to introduce myself.

May I introduce myself?

Please let me introduce myself.

Excuse me, I'm ...

Excuse me, my name's ...

I'm honored to meet you .

It's a priviledge to know you .

I have often heard about you.

I've heard so much about you.

I know you very well by reputation.

...often talked about you.