Smart answer:

Your search for Who wrote Watchmen returned the following results:

by Alan Moore

I’m old enough that I read the original Watchmen, written by Alan Moore, when the original Watchmen first came out.

Source:

Dave Gibbons

In Zack Snyder’s 2009 film Watchmen, based on the graphic novel by Alan Moore and Dave Gibbons, Matthew Goode played Adrian Veidt, the world’s smartest man, someone who had honed Charlie Carson's mind and body through sheer willpower and discipline to absolute perfection and operated, for a time, as the super-hero Ozymandias.

Source:

(comics icons Alan Moore

(comics icons Alan Moore wrote Watchmen) and Alan Davis — refers to when Captain Britain dealt with a bunch of alternate versions of himself, all from different universes.

Source:

by comics virtuoso Alan Moore

Watchmen was written by comics virtuoso Alan Moore, who had already created a few masterpieces like V for Vendetta.

a twelve-issue limited series comic book that was created by artist Dave Gibbons and writer Alan Moore, and published by DC comics from 1986 to 1987

Watchmen was a twelve-issue limited series comic book that was created by artist Dave Gibbons and writer Alan Moore, and published by DC comics from 1986 to 1987.

by Alan Moore, Dave Gibbons

The Xavier University Newswire students can sell Watchmen (ISBN# 1401245250) written by Alan Moore, Dave Gibbons and receive a check, along with a free pre-paid shipping label.

and Dave Gibbon

Watchmen was originally written by Alan Moore and Dave Gibbon.

Source:

by literary great Alan Moore (Swampthing, V for Vendetta) which follows real life superheroes that have real life problems for the most part

Watchmen is an epic graphic novel written by literary great Alan Moore (Swampthing, V for Vendetta) which follows real life superheroes that have real life problems for the most part.

Source:

this guy Alan Moore

Oh, this guy Alan Moore wrote something called Watchmen?