J13 may refer to:

Roads

* County Route J13 (California) * Johor State Route J13, in Malaysia

Vehicles

GNR Class J13 The Great Northern Railway (GNR) Class J13, classified J52 by the LNER is a class of steam locomotive intended primarily for shunting. The Class J13 were introduced in 1897 designed by Henry Ivatt based on the earlier domeless GNR Class J ...

, a British steam locomotive class * , a ''Visby''-class destroyer of the Swedish Navy *

Shenyang J-13 The Shenyang J-13 (Chinese: 歼-13; traditional: 殲-13) was a long-running Chinese project by Shenyang Aircraft Corporation to develop a light-weight, single engine fighter aircraft, which was ultimately cancelled. Development As early as 197 ...

, a cancelled Chinese light fighter aircraft

Other uses

Bacterial pneumonia Bacterial pneumonia is a type of pneumonia caused by bacterial infection. Types Gram-positive '' Streptococcus pneumoniae'' () is the most common bacterial cause of pneumonia in all age groups except newborn infants. ''Streptococcus pneumoniae ...

Pentagonal bipyramid The pentagonal bipyramid (or pentagonal dipyramid) is a polyhedron with ten triangular faces. It is constructed by attaching two pentagonal pyramids to each of their bases. If the triangular faces are equilateral, the pentagonal bipyramid is an ...

, a Johnson solid (J₁₃) * J13, a Nissan J engine * July 13th, 2024 - the date US presidential candidate Donald Trump was shot in Butler, PA {{Letter-NumberCombDisambig