Scarlett Johansson and Cristopher Walken are not related to each other.

Her grandfather Ejner Johansson was from Sweden. Likewise, her maternal grandfather had died already. 

However, the only way they are related is that both are in the film industry.

Some online magazines also shared photos of how Johansson and young Walken look similar, although they are of opposite genders. That photo became viral and drew many theories. 

Many people believe Walkens and Johansson are related, but such rumors are false.