Thomas Theodore Crittenden Jr. (December 23, 1863 – July 31, 1938) was the Mayor of Kansas City, Missouri from 1907 to 1910.

Thomas Theodore Crittenden Jr. was born on December 23, 1863, near Springfield, Illinois.

His father was Missouri Governor Thomas Theodore Crittenden.

[2][3] After moving to Kansas City, Crittenden got into the real estate business.

Crittenden was buried at Forest Hill Calvary Cemetery in Kansas City.