Szyszak may refer to:

• a Polish lobster-tailed pot helmet
• Mały Szyszak, a mountain on the Czech-Polish border (elevation 1,439 m)
• Wielki Szyszak, a mountain on the Czech-Polish border (elevation 1,509 m)

• Trinordiol 28
• Trinorfolkia clarkei
• Trinorfolkia cristata
• Trinorfolkia incisa
• Tri-Norinyl
• Tri-North
• Tri-North Middle School
• Tri (novel)
• Trinovum
• Trinovum 21
• Trinseo
• Trinsey v. Pennsylvania
• Trinta di Mei
• Trintignant
• Trinucleidae
• Trinxet
• Trinxet (disambiguation)
• Trio 2000 + One
• Trio '64
• Trio 99 - 00
• Trio 99 - 00 (album)
• Trio 99 – 00
• Trio 99 – 00 (album)
• Trio (album)
• Trio and Duet