Consolidation may refer to:
- A 2-8-0, a type of steam locomotive.
- Consolidation (business), the mergers or acquisitions of many smaller companies into much larger ones
- Consolidation (soil), a geological process whereby a soil decreases in volume
- Consolidation (media), consolidation of United States media into a few companies
- Pulmonary consolidation, a clinical term for solidification into a firm dense mass
- Championship consolidation, the act of combining two separate championships into a single title
- Data consolidation, the consolidation of data from multiple sources into a centralized system
- Democratic consolidation, the process by which a new democracy matures
- Memory consolidation, the process by which recent memories are crystallised into long-term memory
- School consolidation, the process of combining two or more small schools into one larger institution
- Server consolidation, where multiple servers are consolidated using platform virtualization
- Debt consolidation, the process of combining two or more loans into one big loan
- Federal student loan consolidation, allows students to consolidate student loans into one single debt
- Consolidation, a popular name of a steam locomotive type, with 2-8-0 wheel, built first in 1864
- Land consolidation, the process that consolidates small fragmented parcels of land into larger contiguous plots
- Municipal consolidation, the act of merging two or more municipalities to form a single new one
- Power consolidation, a common phrase of a dictator consolidating political power