What is another word for a loud person?

Here are some words for a loud person, depending on the specific nuance you're trying to convey:

General loudness:

* Boisterous

* Raucous

* Vociferous

* Strident

* Blaring

* Clamorous

* Hotheaded

* Overbearing

* Loudmouth

Speaking loudly and aggressively:

* Bullish

* Belligerent

* Aggressive

* Domineering

* Intimidating

* Shrill

Speaking loudly and often:

* Talkative

* Garrulous

* Loquacious

* Chatty

Loud and obnoxious:

* Brash

* Obstreperous

* Rude

* Insensitive

* Unruly

The best word will depend on the specific situation and the speaker's intentions.