Enoch Leonard Thulin, (15 September 1881 – 14 May 1919) is primarily remembered as a pioneer of the Swedish aircraft industry.

Thulin lived in Landskrona, where he amongst other things founded AB Thulinverken in 1914 to build aeroplanes; today the company is known as Haldex and manufactures pneumatic brake systems for trains and lorries (trucks).

[1] Thulin also started the manufacture of automobiles, which continued until 1928, and what later became Svenska Stridsflygskolan F5 ("The Swedish air-combat school", also known as "Airforcebase 5") at Ljungbyhed in north-western Scania.

According to Palle Mellblom, who started the engine that day, Enoch Thulin was stressed by the successful demonstrations made by Sparmann the same year.

Thulin wanted to improve his flying skills but crashed south-east of Landskrona harbour, at the area which during this time was called "Södra Fäladen".