The Convention of Saint Petersburg may refer to several diplomatic agreements including

• Convention of Saint Petersburg (1747), treaty between Russia, Britain and the Dutch Republic during the War of the Austrian Succession
• Saint Petersburg Declaration of 1868, a convention renouncing the military use of explosive small-weapons projectiles
• Anglo-Russian Convention, treaty between Britain and Russia in 1907 agreeing not to annex Afghanistan

• Saint Petersburg Declaration (disambiguation)
• Treaty of Saint Petersburg (disambiguation)

This disambiguation page lists articles associated with the title Convention of Saint Petersburg.
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