This is a list of gliders/sailplanes of the world, (this reference lists most gliders with references, where available)^[1] Note: Any aircraft can glide for a short time, but gliders are designed to glide for longer.

J

Jach

(Franciszek Jach)

• Jach Bimbuś (Bimbo) No.3 – Second Polish Glider Contest 17 May – 15 June 1925
• Jach Żabuś (Froggy) – First Polish Glider Contest August 1923
• Jach Żabuś 2 (Froggy 2) No.4 – Second Polish Glider Contest 17 May – 15 June 1925

Janka

(Zoltán Janka)

• Janka Gyöngyös 33
• Janka Kócsag
• Janka-Rotter Vándor (Zoltán Janka – Lajos Rotter / MOVERO workshop, Gyöngyös)

Jansson-Thor

(Bengt Jansson & Hank Thor)

• Jansson-Thor BJ-1B Duster
• Jansson-Thor BJ-1 Dyna Mite

Japanese Imperial Army Gliders

• Ku-5
• Ku-9
• Ku-10
• Ku-12
• Ku-14

Janowski

(Jaroslaw Janowski)

• Janowsky J-5 Marco –
• Janowsky J-6 Fregata

Jasiński-Czarnecki Czajka

(Jasiński & Czarnecki)

• Jasiński & Czarnecki Czajka (Lapwing) No.15 – Second Polish Glider Contest 17 May – 15 June 1925

Jastreb

(Jastreb Fabrika Aviona i Jedrilica – Jastreb Aeroplane and Glider Factory)

• Jastreb Cirrus 17-VTC
• Jastreb Cirrus 75-VTC
• Jastreb Cirrus G/81
• Jastreb Kosava-2-S^[2]
• Jastreb Vuk-T (Tomislav Dragović)
• Jastreb Šole 77^[2]

Jaworski

(Wiktor Jaworski)

• Jaworski WJ 3

Jefferson

(G. Jefferson)

• Jefferson 1933 glider

Jelgava

• Jelgava I
• Jelgava-Hütter 17

Jensen

(Volmer S. Jensen, Burbank, CA)

• Martin M-1
• Volmer J-14
• Jensen VJ-11
• Jensen VJ-21
• Volmer VJ-22 Sportsman
• Volmer VJ-23 Swingwing
• Volmer VJ-24W SunFun

Jobagy

(John Jobagy)

• Jobagy Bagyjo

Johnson

(Dick Johnson)

• Johnson RHJ-6 Adastra

Joly

(Édouard Joly)

• Joly Motoplaneur
• Joly CAB 44

Jongblood

(Mike Jongblood)

• Jongblood Primary

Jonker

(Jonker Sailplanes / Attie Jonker)

• Jonker JS-1 Revelation
• Jonker JG-1
• Jonker JS-3 Rapture

Jubi

(Jubi Sportflugzeugbau GmbH)

• Jubi K-13^[3]

Junkers

(Junkers Flugzeug-Werke A.G.)

• Junkers Ju 322 Mammut – Mammoth