EXHIBIT 23.1

                         Consent of Independent Accounts

We  hereby  consent  to the  incorporation  by  reference  in  the  Registration
Statement on Form S-8 of National  Instruments  Corporation  of our report dated
January  18,  2000  relating  to the  financial  statements  and  the  financial
statement schedule, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
Austin, Texas
March 20, 2000