Corrosion protection is one of the utmost aims for the reduction of maintenance costs with higher production for the industry. The conventional toxic chromate-based coating is an environmental concern, which has led researchers to develop an organic-based coating with higher anticorrosive performance. The incorporation of nanocomposite increases the adhesion capability of the coating to the metal surface leading to protecting the metal from corrosion. Nanocomposites have novel mechanical and electrochemical properties. The type of nanocomposites depends on the type of nanostructured filler. The performance of nanocomposite coating depends on the types of nanoparticles and additives, the concentration of the dispersed particles, and the mixing processes. In this chapter, nanocellulose-based nanocomposites, their synthesis, and performance against corrosion protection have been discussed. The potential of these nanocomposites as corrosion inhibitors has been pointed out as well.