I knew maybe 3 of these by name, but most of these, I never even knew they existed. These great infographics from Real Men Style.
Four-In-Hand Knot
Half Windsor Knot
Full Windsor Knot
Nicky Knot
Bow-Tie Knot
Kelvin Knot
Oriental Knot
Pratt Knot
St Andrew Knot
Balthus Knot
Hanover Knot
Plattsburgh Knot
Grantchester Knot
Victoria Knot
Cafe Knot
Eldredge Knot
Trinity Knot
Christensen Knot