Technologies for reducing latency variation of stored data object requests include a proxy computing node communicatively coupled to a plurality of storage nodes. The proxy computing node is configured to determine whether to chunk a data object corresponding to a data object request received by the proxy computing node. Accordingly, the proxy computing node is configured to obtain a retrieval latency of the storage node and determine whether to chunk the data object based on the retrieval latency. The proxy computing node is further configured to, subsequent to a determination to chunk the data object, determine a chunk size (i.e., a portion of the data object) to be retrieved from the storage node and a remaining size of the data object at the storage node after the portion of the data object corresponding to the chunk request is received. Other embodiments are described and claimed.