Subreddits starting with K

Kansas: news and discussion.

Kansas City: news and local discussion.

Kansas City Chiefs fans.

Karate training and discussion.

Kayaking: trips, gear, and technique.

The KDE desktop environment.

Korean dramas: recommendations and discussion.

Encouragement and feedback for writers.

Kentucky: news and discussion.

Kerbal Space Program.

The keto diet: support and recipes.

Keto diet for strength training.

Recipes for the keto diet.

Kettlebell training.

Kickboxing training and fights.

Kickstarter projects.

The Killing Floor games.

Amazon Kindle e-readers and ebooks.

The Kingdom Hearts series.

Patrick Rothfuss's Kingkiller Chronicle.

Fans of King of the Hill.

The Kirby games: news and discussion.

For people who work in restaurant kitchens.

Kiteboarding: gear, spots, and technique.

Pictures and care of kittens.

Knitting: patterns and projects.

Knives, knife care, and collecting.

Tying knots: types and uses.

Knoxville, Tennessee: local discussion.

South Korea: news, events, and local discussion.

Learn Korean: grammar, vocabulary, and practice.

Korean food and recipes.

Star Wars: Knights of the Old Republic.

Korean pop music: groups, releases, and news.

Krav Maga training and self-defence.

Kung fu and Chinese martial arts.

Martial arts and kung fu films.