Biofilm is a community of sessile cells that adhere to a surface, encapsulated by extracellular polymeric substances that facilitate a robust and irreversible attachment. Infections associated with biofilms represent a significant threat to human health, as they can lead to various diseases and, in extreme cases, culminate in fatalities. Eradicating biofilm infections is a formidable challenge, and conventional approaches to addressing biofilm infections are ineffective due to their extensive resistance mechanism. The assimilation of multi-omics technologies has emerged as a comprehensive method for understanding the genetic diversity of multispecies biofilm components and predicting the most efficacious eradication strategies. Transcriptomics can assist in determining biofilm components and antibiotic resistance via RNA-sequencing, microarrays, and qPCR. At the same time, proteomics and metabolomics provide a more in-depth analysis of the multispecies biofilm matrix and key metabolites associated with biofilm formation. The leverage of omics in biofilm inhibition is diverse, encompassing various approaches, such as identifying antibiofilm drugs, developing enzyme-based therapeutics, exploring phage therapy, and creating vaccines. Omics-guided strategies can assist in discovering natural or synthetic compounds that either prevent biofilm formation or disrupt established biofilms. Additionally, these techniques can identify enzymes capable of breaking down the biofilm matrix. This chapter centers on the holistic or multi-omics approach, which offers a comprehensive view of the changes observed in a biofilm system. A deeper understanding of biofilm biology can be utilized to develop innovative and tailored strategies for addressing biofilm-associated infections and industrial challenges.