Steffen Bernhardt Jensen (13 April 1910 – 11 June 1978) was a Danish journalist, author, politician and Mayor of Aarhus from 1958 to 1971 for the Social Democratic Party.

During his tenure as mayor, he became known for his opposition to car traffic and he stopped several infrastructure projects that would have required large-scale demolitions of the historic inner city.

During the same period he was active in antimilitaristic work and between 1929 and 1935 he was on the board of the national association of the organization Aldrig Mere Krig (Never more war).

[1] He graduated from N. J. Fjordsgades Skole in 1927 and then started as an intern on the local newspaper Aarhus Venstreblad, associated with the Danish Social Liberal Party.

During his youth, he published poems in the magazine Vild Hvede, although he later focused his efforts on local historical subjects.