The blessing over matzah is the same as that over any other bread. Say this blessing before eating matzah.

Transliteration

Baruch atah, Adonai Eloheinu, Melech haolam, haMotzi lechem min haaretz.

Translation

Blessed are You, Adonai our God, Sovereign of all, who brings forth bread from the earth.

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Audio file

At a Passover seder we say an additional blessing before eating the matzah.

Transliteration

Baruch atah, Adonai Eloheinu, Melech haolam, asher kid'shanu b'mitzvotav, v'tzivanu al achilat matzah.

Translation

Blessed are You, Adonai our God, Sovereign of all, who hallows us with mitzvot, commanding us regarding the eating of Matzah.