Data Structures are a specialized means of organizing and storing data in computers in such a way that we can perform operations on the stored data more efficiently. Data structures have a wide and diverse scope of usage across the fields of Computer Science and Software Engineering. That said, there are 8 commonly used data structures every programmer must know.

1 >> Arrays

2 >> Linked lists

3 >> Stacks

4 >> Queues

5 >> Hash tables

6 >> Trees

7 >> Heaps

8 >> Graphs

Source: https://towardsdatascience.com/8-common-data-structures-every-programmer-must-know-171acf6a1a42