Weng Cho Chew (Chinese: 周永祖;[a] born 1953) is a Malaysian-American electrical engineer and applied physicist known for contributions to wave physics, especially computational electromagnetics.

[1] Born in Malaysia, Chew received his bachelor's, master's and PhD degrees in electrical engineering from the Massachusetts Institute of Technology in 1976, 1978 and 1980, respectively.

Chew's chief contributions are in the areas of waves in inhomogeneous media for various geophysical subsurface sensing and non-destructive testing applications,[3][4][5][6] integrated circuits,[7][8][9][10][11] microstrip antenna applications,[12][13][14][15][16] fast and efficient algorithms for solving wave scattering and radiation problems,[17][18][19][20][21][22] stretched coordinate perfectly matched layers,[23][24][25][26] and inverse scattering using distorted Born approximation.

[27][28][29][30][31][32] Chew has developed fast solvers that make it possible to simulate the electromagnetic behavior of structures of unprecedented sizes.

[42] Chew is the author of Waves and Fields in Inhomogeneous Media (Van Nostrand Reinhold 1990; reprinted by IEEE Press, 1995), the co-author of Integral Equation Methods for Electromagnetic and Elastic Waves (Morgan & Claypool, 2008), and co-editor of Fast and Efficient Algorithms in Computational Electromagnetics (Artech House, 2001).