Justice Johnston may refer to:
- Francis Wayland Johnston, associate justice of the New Hampshire Supreme Court
- William Agnew Johnston, associate justice of the Kansas Supreme Court
-==See also==
- Martin E. Johnstone, associate justice of the Kentucky Supreme Court
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- James Hanna (judge), associate justice of the Indiana Supreme Court
- Richard H. Hanna, associate justice of the New Mexico Supreme Court
-==See also==
- Jim Hannah, associate justice of the Arkansas Supreme Court
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- Frank Hollingsworth, associate justice of the Supreme Court of Missouri
- P. A. "Les" Hollingsworth, associate justice of the Arkansas Supreme Court