HH19, HH-19, HH 19, HH.19, may refer to:

• Sikorsky HH-19, a variant of the Sikorsky H-19 Chickasaw helicopter
• HH19, one of the Hamburger–Hamilton stages in chick development
• DUSP6, dual specificity phosphatase 6, also called "HH19"

See also[edit]

• All pages with titles containing HH-19
• All pages with titles containing HH19
• HH (disambiguation)
• H19 (disambiguation)
• H (disambiguation)