The Sotetsu 10000 series (相鉄10000系) is an electric multiple unit (EMU) commuter train type operated by the private railway operator Sagami Railway (Sotetsu) in Japan.

[1]: 28–29  The 10000 series were constructed by Tokyu Car Corporation in Yokohama and JR East's Niitsu factory.

The two sets returned to revenue service on 18 May 2024, and they were scheduled to carry the liveries until November.

[4] In 2020, 10-car set 10701 received restyled front ends, an all-over "Yokohama Navy Blue" livery, full-colour LED destination displays, and a renovated interior.

[5][6] Sets 10702 and 10703 received a less extensive treatment, which only affected front-end styling and onboard equipment.