Udo Steinberg Werle (13 June 1877 – 25 December 1919) was a German engineer, athlete and sports official who played football as a forward for the Spanish club FC Barcelona between 1902 and 1910.

Despite being an outstanding football player, a sport to which he owes his career, he was an all-around sportsman who also performed in other modalities such as athletics, cricket, tennis, cycling, boxing and alpine disciplines.

By the time his father died in Italy in 1889, Steinberg was attending the Friedrich Wilhelm Gymnasium, where he completed an apprenticeship in Ferdinand Ernecke's mechanical workshop in Berlin.

On 28 January 1900, Steinberg was sent to Leipzig to attend the founding meeting of the German Football Association (DFB) as a delegate of both Mittweida and Britannia.

[9] It was around this time that Steinberg met the Portuguese Virgilio Da Costa, an industrial technical engineer who also played for the Mittweida BC, and with whom he established a great friendship, and they went on to be teammates at FC Barcelona.

[10] In addition to da Costa, Mittweida BC was also the football cradle of the likes of Antonio Alonso from Vigo, Juan Arzuaga, Adolfo Uribe and Luis Astorquia from Bilbao.

[citation needed] In April 1902, the first football school of FC Barcelona was created and Steinberg was appointed director of it in order to "instill his extensive knowledge in the players of the third side".

Steinberg played a fundamental role in Barça's first-ever piece of silverware, the 1901–02 Copa Macaya, netting a whopping 17 goals, including back-to-back hat-tricks against Club Español and University SC and a 6-goal haul in the tournament's final matchday on 23 March 1902 to help his side to a 15–0 victory over Català FC.

[15] Despite his prolificity in front of goal, he failed to be the tournament's top scorer as he was narrowly outscored by teammate and captain Joan Gamper.

Together with Gamper, the Morris brothers (Samuel, Enrique, Miguel) and Alfonso Albéniz, he was a member of the Barcelona side that participated in the very first national tournament played in Spain, the 1902 Copa de la Coronación, helping Barça reach the final on 15 May 1902, where they were beaten 2–1 by Bizcaya (a combination of players from Athletic Club and Bilbao Football Club).

[18] He stayed loyal to the club through its crisis in the mid-1900s and helped them win another championship in 1908–09, this time featuring alongside the likes of Paco Bru, Enrique Peris and Charles Wallace.

In 1916, Steinberg and Paul Schröder founded a limited partnership with 28 employees for the construction and sale of machines of all kinds, which later became La Maquinista Hispania.