Sadler Vaden (born February 19, 1986) is an American guitarist, singer, songwriter and producer, best known as a member of Jason Isbell's band, The 400 Unit.

[2] When Sadler was eighteen, his father died of alcoholism and on his twenty-first birthday, his mother passed away as a result of breast cancer.

[4] Vaden began playing the guitar when he was a teenager and started his first band, a power trio called Leslie when he was eighteen.

[5] Vaden and band opened for a number of national and regional artists, including Drivin N Cryin and Jason Isbell.

In 2021, he produced the highly acclaimed debut album for Morgan Wade, Reckless, as well as playing guitar on that record.