The new law prohibits adoption by same-sex foreign couples whose homeland recognizes their union as marriage, as well as by single people or unmarried couples from those countries.
A Kremlin statement said the measure is intended to guarantee children a “harmonious” upbringing and protect them from “complexes, emotional suffering and stress.”
The bill signed Wednesday is the latest move by Russia to buck the Western trend toward greater acceptance of homosexuality.
On Sunday, Putin approved a ban on giving children any information about gays.
The adoption bill further shrinks the possibilities for 600,000 Russian children without parental custody.
Last year, Russia banned all adoptions by Americans.
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