Holographic recording on a real‐time basis of two‐dimensional images in an iron‐doped lithium niobate fiber with a 200 &mgr;m diameter and 3 mm length is demonstrated for the first time. The erasure time constant as a function of readout beam power, the diffraction efficiency as a function of incident reference angle, and the results of angular‐multiple recording of two images are shown. These results suggest that the LN fiber could replace bulk materials for holographic recordings in optical parallel processing.