Acknowledge, acknowledgment, or acknowledgement may refer to:
Arts, entertainment and media Acknowledgment (creative arts and sciences), a statement of gratitude for assistance in producing a work Acknowledgment index, a method for indexing and analyzing acknowledgments in the scientific literature "Acknowledgement" (song), a 1965 song from John Coltrane's album A Love Supreme
Technology Acknowledgement (data networks), a signal used to indicate acknowledgement ACK, a flag used in the Transmission Control Protocol (TCP) to acknowledge receipt of a packet
Other uses Acknowledgment (law), a declaration of one's own act, to give it legal validity Service of process, acknowledgment of service Acknowledgement of receipt, a postal service
See also ACK (disambiguation) Credit (creative arts), acknowledgment given to someone in the creative arts