Editor's note: The introduction to this list was written by Landon Hemsley, and the list itself was created by Ryan Forsgren of Boise.

The BYU Honor Code requires students to adhere to dress and grooming standards consistent with the values adopted by the university and its owning institution, The Church of Jesus Christ of Latter-day Saints.

Among those values are honesty, chastity, virtue, obedience and cleanliness in body, mind and appearance.

Cleanliness in appearance is the subject of this piece.

Quoting directly from BYU's Honor Code, "Hairstyles should be clean and neat, avoiding extreme styles or colors, and trimmed above the collar, leaving the ear uncovered. Sideburns should not extend below the earlobe or onto the cheek. If worn, moustaches should be neatly trimmed and may not extend beyond or below the corners of the mouth. Men are expected to be clean-shaven; beards are not acceptable."

While students at BYU are clearly prohibited from growing a beard, there's nothing forbidding a classy mustache.

Ryan Forsgren of Boise went back through BYU football history and found the greatest mustaches of all time. Though not many current Cougars sport a ’stache, over the years, there have really been some good ones.

Landon Hemsley is the sports web producer for DeseretNews.com. Email: lhemsley@deseretnews.com. Twitter.com/EarlOfHemsley — Ryan Forsgren, who contributed this list, is from Boise.

10 "The Dangler"

Sported by Phil Jensen

Position: Linebacker

Time at BYU: 1973-75

This mustache barely makes the list. It scores highly on the robustness scale, but you would have thought that on team picture day, one of Phil's teammates would have said "Yo, Phil, better even out the ’stache before they take your picture."

9 "The Borat"

Sported by Brandon Flint

Position: Defensive line

Time at BYU: 1980-83

Flint gets serious points for his mustache's robustness, but I had to dock him for maintenance. I would have definitely worn it a little more clean if I was him.

8 "The Outline"

Sported by Corby Eason

Position: Defensive back

Time at BYU: 2009-11

White dudes can't really pull off pencil mustaches, but African-Americans can, and they look great. When white guys try it, they always look like the villain in a silent movie.

7 "The Swanson"

Sported by Jason Buck

Position: Defensive end

Time at BYU: 1985-86

Jason Buck was one of BYU’s all-time great defenders, and he sported one of the all-time great mustaches as well. "The Swanson" is an American classic, a truly manly mustache.

6 "The P.I."

Sported by Ladd Akeo

Position: Tight end

Time at BYU: 1983-86

I really like this one — it has a hint of Magnum P.I. to it, it's very clean and sharp, but it's not a pencil mustache. This one would be higher, but it scores low on robustness.

5 "The Nacho"

Sported by Mike Empey

Position: Offensive line

Time at BYU: 1987, 1991-93

This mustache may not be that great, but it gets tons of points just for reminding me of Nacho Libre.

4 "The Shop Teacher"

Sported by Walt Manwill

Position: Offensive line

Time at BYU: 1977-81

Good old Walt was from Boise. Maybe he really was my shop teacher? He definitely looks like him.

3 "The Classic"

Sported by Tom Holmoe

Position: Defensive back

Years at BYU: 1978-82, current BYU athletic director

"The classic" is still groovy after all these years. Holmoe's "sunshine stash" gets bonus points for being one of the very few blonde mustaches in BYU history.

Look it up, it's true.

2 "The Sheriff"

Sported by Spencer Hadley

Position: Outside linebacker

Time at BYU: 2008, 2011-present

Maybe I'm overrating this ’stache because Hadley is a current player, but I think he deserves major points for being willing to buck the clean-shaven trend and try to bring the ’stache back to BYU.

Plus, I really like the slight "W" shape that he's rocking.

1 "The Coach"

Sported by Andy Reid

Position: Offensive line

Years at BYU: 1978-80

What? Did you think Andy got that great ’stache overnight? No way! He's been working on that bad boy for nearly 30 years.

I predict he'll still be rocking it for a long time to come, unlike that sellout, Tom Holmoe.