Walter William Ahlschlager (July 19, 1887 – March 28, 1965) was a 20th-century American architect.

After being located in Chicago for many years, he established his office in Dallas, Texas, in 1940.

He died in Dallas.

[2][3][4] Ahlschlager was born to German Jews John and Louise Ahlschlager and had one sister named Ella.

John Ahlschlager and his brother, Frederick, were both "prominent local [Chicago] architects.