In enzymology, a 3-oxoacyl-[acyl-carrier-protein] reductase (NADH) (EC 1.1.1.212) is an enzyme that catalyzes the chemical reaction

(3R)-3-hydroxyacyl-[acyl-carrier-protein] + NAD⁺ ${\displaystyle \rightleftharpoons }$ 3-oxoacyl-[acyl-carrier-protein] + NADH + H⁺

Thus, the two substrates of this enzyme are [[(3R)-3-hydroxyacyl-[acyl-carrier-protein]]] and NAD⁺, whereas its 3 products are [[3-oxoacyl-[acyl-carrier-protein]]], NADH, and H⁺.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD⁺ or NADP⁺ as acceptor. The systematic name of this enzyme class is (3R)-3-hydroxyacyl-[acyl-carrier-protein]:NAD⁺ oxidoreductase. Other names in common use include 3-oxoacyl-[acyl carrier protein] (reduced nicotinamide adenine, dinucleotide) reductase, and 3-oxoacyl-[acyl-carrier-protein] reductase (NADH).

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