Jew’s Harp dream meaning is explained below using 4 different sources. Each interpretation is shown with its source.

Interpretation 1 — Stearn Robinson - Tom Corbett

If you played it, it signifies foreign travel or foreign visitors in the near future; however, if you only saw one or heard it, it predicts good business news or a welcome change of circumstances.
Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 2 — Gustavus Hindman Miller

To dream of a Jew’s-harp, foretells you will experience a slight improvement in your affairs.

To play one, is a sign that you will fall in love with a stranger.

Source: Ten Thousand Dream Interpretation Author: Gustavus Hindman Miller

Interpretation 3 — Internet Archive - Anonymous

To dream you see one, indicates good news of a reconciliation.

If you play one, the news will affect business relations with an important personage.

Source: Mystic Dream Book Author: Internet Archive - Anonymous

Interpretation 4 — Gillian Holloway

One who plays a jew’s harp while dreaming will travel extensively and find a sincere admirer of another nationality.
Source: The Complete Dream Book Author: Gillian Holloway