Norbert Lala Ratsirahonana (born November 18 1938) was a Madagascan politician.
He was born in Antsiranana. He founded and led the Asa Vita no Ifapitsarana (Judged By Your Work) Party, which opposed President Didier Ratsiraka. He and his party were part of the coalition which elected Albert Zafy to the presidency in 1993. Ratsirahonana then became president of the constitutional court.
On May 28 1996, when the prime minister was deposed by Parliament in a no confidence vote, Zafy appointed Ratsirahonana to the post. Soon afterward, Zafy was impeached, and on September 5, 1996, Ratsirahonana became acting President of Madagascar. Presidential elections were held in December 1996, in which Ratsirahonana ran, against four other candidates including former Presidents Zafy and Ratsiraka. Ratsirahonana received fourth place and 10% of the vote. Ratsiraka won and Ratsirahonana left office as President on February 9, 1997. Twelve days later, he also lost his position as prime ministerr when Ratsiraka appointed one of his own allies. The AVI then became the main opposition party, though it became very weak, winning only 13 of the 150 seats in the 1998 parliamentary elections.
In 2001, Ratsirahonana and the AVI supported Marc Ravalomanana in the presidential elections. When he won, Ratsirahonana had the AVI disbanded.