Knightcore is an aesthetic inspired by medieval knights. Knightcore has a large presence on Tumblr, characterized by themes of combat and nature visuals. There is also often overlap with Medieval Fantasy , as opposed to being based solely on historical knights.

Due to their practical purposes, historically accurate and historically-inspired knight attire is generally uncomfortable and regarded as inappropriate for everyday wear and most formal occasions. They are mostly used in art and cosplay.

This aesthetic often utilizes modern interpretations of Medieval armor, as opposed to historically accurate depictions of it.

Knightcore uses visuals similar to other Royalcore sub-aesthetics, but differs in its focus on knighthood, war, and adventure. Here is a short list of common Knightcore visuals:

Knightcore includes performances of songs composed from the Medieval period to the Renaissance and modern songs created in the Medieval style. It features instruments such as the lute, violin, and choir voices.