RDX (disambiguation)
RDX is an explosive. RDX may also refer to:

Science and technology
 Radixin, a protein encoded by the RDX gene
 RDX register, a CPU register in 64-bit x86 processors
 RDX Technology, a data storage format

Other uses
 RDX (band), a reggae duo from Kingston, Jamaica
 Acura RDX, a 2006–present Japanese compact SUV
 RDX Love, a 2019 Indian Telugu-language film directed by Shankar Bhanu
 RDX: Robert Dony Xavier, a 2023 Indian Malayalam-language film directed by Nahas Hidayath
 Ranvir Dhanraj Xaja "RDX Bhai", fictional criminal played by Feroz Khan in the 2007 Indian film Welcome