Onscreen chemistry refers to the natural connection, rapport, and dynamic interactions shared between actors when performing roles together in film or television shows. It creates a sense of genuine connection and believability, capturing the audience's attention and immersing them in the characters' journeys. When actors display undeniable chemistry onscreen, the interactions appear effortlessly charming and captivating, adding depth and emotion to the storytelling.

Onscreen chemistry can exist between romantic partners, friendships, siblings, or any characters who interact significantly within a story. Some famous examples of onscreen chemistry include: